The Brief

The city of Los Angeles is overhauling how and where it places crossing guards before the start of the upcoming school year.

The L.A. City Council voted Wednesday to conduct a citywide assessment of elementary school crossings informed by:

• Safety data
• Equity measure
• And existing infrastructure

These metrics will now inform decision on where to place crossing guards. It's a significant change, moving the city away from its previous practice of only studying intersections where a school principal requested a crossing guard.

How we got here

The item passed with 11 “yes” votes. Council members Traci Park and John Lee voted against the update because they were concerned how it will affect current crossing guard assignments, and council members Bob Blumenfield and Adrin Nazarian were absent.

Laura Rubio-Cornejo, the general manager of the Department of Transportation, said at a committee meeting in June that the new approach will integrate the city’s crossing guard program into the same process it uses to evaluate the need for other school safety treatments, like speed tables and speed limit reductions.

“It would allow us to have a more comprehensive approach to addressing school safety that capitalizes and leverages all the different tools that we use to make the streets leading to schools safer,” Rubio-Cornejo said when the updated methodology was first considered.

While the updated methodology has generally been received positively for offering a more equitable and comprehensive distribution of resources, it’s still unclear if volunteers can fill in the gaps created by the city’s shortage of crossing guards.

The city has been able to place crossing guards at about two-thirds of the intersections requested, Rubio-Cornejo wrote in a budget memo this spring.

What’s changing

For years, school principals would request a crossing guard for an intersection around their school. Then, engineers working for the city would decide if a crossing guard was necessary based on the kind of intersection, number of lanes, speed limits and volume of vehicle and pedestrian traffic, according to the Department of Transportation.

In the June report, Rubio-Cornejo wrote that this system “inherently limits deployment…and may not address safety concerns at locations that have not been requested.”

To produce the new crossing guard assignments, the Department of Transportation will apply the same criteria it used previously to intersections within a 1,000-foot radius of all elementary schools — not just the ones identified by school principals.

The details

That’s the high-level description. There are a lot more details, but bear with us, it’s a bit complicated:

First, the Department of Transportation will extract elementary schools from a list of all schools within the city that it ranked by need of street safety intervention.

That list, which you can see starting on page 10 here, was created last year. It was based primarily on collision data. Other factors, including how the areas around each school scored on various socioeconomic, environmental and health variables, were also considered in the ranking.

Elementary schools, in ranked order, will then be categorized by geographic region. The purpose of this, according to the Department of Transportation, is to ensure crossing guards aren’t deployed to a different region than the one they were already assigned to.

The regions schools will be sorted into.

(

City of Los Angeles

)

Within each region, intersections within the 1,000-foot radii of schools with higher need will be prioritized. For those intersections, the Department of Transportation will apply the same criteria it used in its previous approach to assign crossing guards.

So, for example, if there’s a high-ranked school in the Western region with two unmarked crosswalks, each with several lanes of fast-moving traffic and a high proportion of students who are pedestrians, that school could get two crossing guards.

Carlos Torres, the director of the L.A. Unified School District’s office of environmental health and safety, said updating the methodology is a “good move.”

“There’s a lot of positivity in it because essentially they’re looking at a number of different factors,” Torres said.

L.A. Unified School Board Member Tanya Ortiz Franklin, whose district includes South L.A., said she’s in favor of the “more strategic, inclusive, equitable approach.”

“Principals are not equally overwhelmed,” said Ortiz Franklin, who has led school safety initiatives for the county school system. “In higher need areas, there tends to be a lot more on their plate, and so they’re not always able to get to everything in the same way that a calmer, school environment might lead to.”

Old system fueled frustration

John-Ryan Shea was walking his third-grader to school in November when he heard the screeching sound of brakes followed by a thud on Avoca Street and Yosemite Drive.

When Shea turned around, he said he saw a girl “thrown about 10 feet” after a car hit her at the corner of Rockdale Elementary School, an arts-focused magnet school in Eagle Rock.

Luckily, the girl survived the collision and was doing relatively OK, at least physically.

“The one thing I‘ll just never forget is her face,” Shea said. “Just how absolutely stunned she was that she got hit by a car.”

According to an LAist review of state-level data, seven children ages five to 11 have been killed while walking on the street on a weekday between 2013 and 2022 in the city of L.A. There have been several more collisions in the same time period that resulted in injuries.

Rockdale parents had been campaigning to get a crossing guard at that intersection to no avail, despite warning that a collision like the one in November was bound to happen. Shea said drivers at the intersection regularly run through the four-way stop sign, and an LAist reporter observed that the stop and speed limit signs near the intersection are obscured by vegetation.

A public comment submitted about the new crossing guard methodology details more than two years of email communications between concerned Rockdale parents, local officials and Department of Transportation staff.

Today, the intersection is one of the nearly 240 in the city where, under the outgoing system, requests for crossing guards weren’t fulfilled.

The gray area of volunteers

A looming question about the city’s program is whether parents can volunteer to provide crossing guard services at locations otherwise not covered, like the one near Rockdale.

The city has said it is unable to administer a volunteer program itself while employing people to provide the same service because of labor rights issues.

The city added in its June report about the updated methodology that it could train volunteers that schools themselves manage to “augment the crossing guard program.”

That was news to Torres at L.A. Unified, who said the city has been “ very adamant there are no volunteer crossing guards.”

Torres, who LAist interviewed in June, added that the idea the city put forth about volunteers hasn’t been “vetted” by his office and that he hasn’t heard anything from the city on volunteer crossing guards that he can recall in “recent times.”

LAist reached out to the L.A. Unified to confirm there hasn’t been communication since the interview about volunteer crossing guards but hasn’t heard back.

It was only during budget negotiations in the spring, when the more than $10 million program was primed to be slashed, that City Council members learned it’s possible that volunteers can provide crossing guard services, as long as they’re managed by the school or school district.

“That’s the opposite of everything I’ve been told,” Councilmember Katy Yaroslavsky, who presided over the hearings, said. “I’ve talked to school board members who were very frustrated that they can’t [have volunteer crossing guards].”

Potential “heartache”

The crossing guard program emerged from the budget negotiations intact, which meant that Secorra Gagau, a Hollywood-based crossing guard supervisor, could expect to continue doing the job she loved.

“A lot of times, besides their family, we're the first face that [kids] see going to school,” Gagau said. “They are so excited to tell us about their morning and what they have planned at school.”

For Park, the connection communities develop with crossing guards was enough to vote against the updated methodology, which is likely to result in a reshuffling of resources.

“I just can’t explain to my constituents that we may lose crossing guards where they have long been deemed necessary and essential,” Park said in June.

Torres agreed that there will be “growing pains” if the city’s forthcoming evaluation determines a crossing guard is better served elsewhere.

“ It's gonna cause a little bit of heartache,” he said.

Why we are limited in evaluating the impact of the change

Neither the Department of Transportation nor the school district would send data on where crossing guards were placed last school year, despite multiple requests.

LAist believes it’s important to have that list to evaluate how the updated methodology affects where crossing guards are placed in the future, so that data is now being pursued through a public records request.

How to watchdog your local government

• One of the best things you can do to hold officials accountable is pay attention.
  

• Your city council, board of supervisors, school board and more all hold public meetings that anybody can attend. These are times you can talk to your elected officials directly and hear about the policies they’re voting on that affect your community,

  • Read tips on how to get involved.
    

President Donald Trump said his administration will, for now, halt its efforts to deploy National Guard troops to Chicago, Los Angeles and Portland, Ore., after his deployments to the Democratic-led cities suffered a series of legal setbacks.

In a Truth Social post on Wednesday, Trump praised the deployments and claimed they have helped curtail crime.

"Portland, Los Angeles, and Chicago were GONE if it weren't for the Federal Government stepping in," he said.

The deployments in Chicago and Portland were blocked by the courts and Guard members left California after a sharp rebuke from a U.S. District Court judge earlier this month.

More recently, the Supreme Court last week ruled against the administration's emergency appeal to deploy troops to Chicago. It was the first time the high court waded into the matter. While not precedent-setting, the ruling brought some clarity to Trump's presidential powers.

Trump had argued that the Guard was needed in the Democratically led cities to quell crime and protect federal immigration officers and facilities. Democratic governors in those states staunchly opposed the deployments and federal judges were also wary of allowing the military to intervene in civilian matters.

"This principle has been foundational to the safeguarding of our fundamental liberties under the Constitution," U.S. District Court Judge Karin Immergut wrote in her November ruling freezing Trump's deployment of troops to Portland.

Trump has also deployed National Guard troops to other U.S. cities, including Washington, D.C., where more than 2,000 members of the Guard have been patrolling since August.

Those deployments have also faced legal challenges — earlier this month a federal appeals court ruled that troops can remain in the capital city while a panel of judges examines whether the deployment is legal.

A handful of Republican-led states have welcomed the Guard. In Tennessee, troops began patrolling in October. And moments after the Supreme Court ruling, Louisiana Gov. Jeff Landry said 350 troops would deploy to New Orleans. National Guard members arrived in the city Tuesday, member station WWNO reported.

In his Truth Social post on Wednesday, Trump promised, "We will come back, perhaps in a much different and stronger form, when crime begins to soar again - Only a question of time!"

Copyright 2026 NPR

Starting on Jan. 1, hundreds of new state laws will go into effect, some with the potential to shape the everyday lives of Californians. They’re meant to tackle the state’s housing affordability crisis, establish guardrails on the use of artificial intelligence and protect the sharing of personal information for those who could face federal immigration enforcement.

Most new laws won’t all bring change overnight. But some could stoke continued controversy and legal challenges. For example, if you live near public transit, one new state law will give developers the freedom to build taller, denser housing, overriding local zoning rules and potentially transforming some single-family neighborhoods. Some cities and counties remain vehemently opposed and are considering legal action.

If you’re a renter, your landlord starting Jan. 1 will be required to provide a working stove and refrigerator and keep them in working order, a nod to efforts to ease the state’s severe affordability challenges. And if you work in law enforcement or the health care field, new state laws will regulate what you can and can’t do with AI on the job.

Here’s a small sample of the many new California laws that will go into effect Jan. 1:

More housing near transit

California lawmakers approved a significant and controversial new housing law this year, Senate Bill 79. It allows for building denser, taller housing near major transit stations even in areas where local rules ban that level of development. The law will pave the way for apartment buildings as tall as 75 feet close to metro, light rail, and some bus stations. Democratic lawmakers were divided over the measure. Some argued it was necessary to speed housing development and alleviate the state’s housing shortage while others warned it would change neighborhoods of single-family homes and impact property values. Developers will officially get the green light to break ground on projects that fall under the new law starting in 2026.

— Laura Fitzgerald

Requiring stoves and fridges in rentals

While it’s quite common for rental units to include a stove and a fridge, it hasn’t been the law. Beginning Jan. 1, Assembly Bill 628 adds refrigerators and stoves to the state’s definition of a “habitable” home. This means landlords must provide them, keep them in working order and handle repairs or replacement. The rule applies to new or renewed leases. Tenants may voluntarily bring their own fridge, but they aren’t required to. The law makes exceptions for supportive housing and shared living buildings with communal kitchens. Supporters say the change is designed to improve affordability for low-income renters.

Arturo Rodriguez of the California Democratic Renters Council says this protects many renters in larger cities, where stoves and refrigerators are not included in a unit, which is more common.

“When landlords offload basic costs onto renters, it’s really destabilizing families,” said Rodriguez.

Several landlord and real-estate groups, such as the California Apartment Association and the California Association of Realtors, opposed the bill. They say new costs and installation could complicate expenses for property owners.

— Tony Rodriguez

Rideshare drivers can unionize and will have lower insurance requirements

In this Tuesday, Jan. 12, 2016, file photo, a driver displaying Lyft and Uber stickers on his front windshield drops off a customer in downtown Los Angeles.

(

Richard Vogel

/

AP Images

)

California’s 800,000 rideshare drivers will get the right to unionize in 2026. In turn, rideshare companies will also have drastically lower insurance costs. That’s under two new laws Governor Gavin Newsom signed after brokering a deal between labor and major rideshare companies, including Uber and Lyft. The Service Employees International Union (SEIU), which sponsored Assembly Bill 1340 to expand collective bargaining rights to gig drivers, has already reached out to drivers ahead of the law’s implementation. Senate Bill 371 will slash insurance requirements for rideshare companies for underinsured drivers from $1 million to $300,000 per incident.

— Laura Fitzgerald

Getting election results faster

Staffers at Los Angeles County Recorder/County Clerk's headquarters sort ballots in this file photo from 2008, for the California presidential primary.

(

Ric Francis

/

AP

)

Californians could see faster election results in 2026. That’s under a new law that will require election officials to count the vast majority of ballots by 13 days after election day, with exceptions for some ballots that require additional verification. There are no current requirements for counting benchmarks, just a deadline for officials to send final election results to the Secretary of State within 31 days after election day. That rule will still apply.

The new law comes as the state has seen a rise in close contests where results can take weeks. Proponents, including some election experts, say speeding up ballot counting will bolster trust in the state’s election process. “We're at the point where people are losing faith in the political process and the elections process because they hear these claims from some political leaders casting doubt on the reliability of our results, and that's a real problem,” said Kim Alexander, president of the California Voter Foundation.

— Laura Fitzgerald

Ban on AI Chatbots misrepresenting themselves as medical professionals

Starting Jan. 1, Assembly Bill 489 will make it illegal for AI Chatbots to misrepresent themselves as doctors, therapists or other licensed clinicians when people go to them for advice. This has been an emerging problem with the artificial intelligence technology available online.

The California Medical Association helped sponsor the bill. Lobbyist Stuart Thomspon told CapRadio that oftentimes vulnerable people seeking mental health advice are not aware the chatbot they are speaking to is not being monitored by a real person.

“ A lot of these chatbots will imply, or not even imply, directly state, that the patient who's interacting with them is actually interacting with a licensed mental health professional,” Thompson said. “When in fact all the content generated is purely AI.”

Assemblymember Mia Bonta is the law’s author. She said it provides safeguards for young people and elders who may have trouble discerning who they are speaking with.

 ”The world is our oyster when it comes to AI and the advancements that are being made with agentic AI,” she said, referring to artificial intelligence systems that act with autonomy. “It's very important that we are providing enough of the human in the loop to be able to ensure that those experiences end up being positive and ensure that consumers are protected.”

A spokesperson for Bonta said developers of these AI systems may be held to the same consequences as humans who impersonate medical professionals – up to a $10,000 fine and/or up to a year in prison.

— Riley Palmer

Renewed Cap-and-Trade

(

Thomas Hawk

/

Flickr

)

California lawmakers passed legislation to renew the state’s cap-and-trade program — now officially calling it “cap-and-invest” — through 2045, with some amendments. The California Air Resources Board will begin rulemaking in the new year to figure out how to integrate the changes.

One change to the program allows CARB the chance to limit the distribution of free allowances. These allowances are meant to help address leakage risk, which refers to the risk that a company may decide to take its operations outside of California to avoid certain state restrictions. But critics have long said the leakage risk associated with the program is overblown, and these allowances allow companies to continue polluting.

CARB will soon announce the results of a revised assessment of the program’s leakage risk, which could guide their decisions to possibly limit free allowances after 2031.

— Manola Secaira

Protecting street vendors' personal data

Senate Bill 635 aims to protect street vendors in California from having their sensitive personal data shared with the federal government as the Trump administration continues to crackdown on undocumented immigrants.

Beginning Jan. 1, state and local governments will be prohibited from voluntarily providing street vendors’ identifying information to federal immigration authorities. The law also bars local agencies from collecting information on immigration status or criminal history, or from requiring fingerprints or LiveScan background checks as part of the street vendor permitting process.

Under the new law, local authorities that collected this prohibited information prior to the law’s effective date must destroy those records by March 1.

“Street vendors are a cornerstone of our communities and contribute significantly to California’s vibrant culture and economy,” said Democratic Senator María Elena Durazo, the bill’s author. “SB 635 ensures that these hardworking entrepreneurs can operate their businesses without fear that their personal information will be turned over to immigration authorities.”

Opposition to the bill was limited during the legislative process, with critics primarily raising questions about language surrounding food safety enforcement and administrative costs rather than immigration policy.

— Chris Felts

Disclosing AI use in police reports

(

Scott Davidson

/

Wikimedia Commons

)

A new law going into effect Jan. 1 will require California law enforcement officers to disclose when they use AI to help write official reports.

Under the new law, agencies will need to provide a statement when the technology is used in a report as well as a signature from the officer involved in it.

Democratic State Senator Jesse Arreguín of Berkeley is the law’s author. Arreguín told a Senate committee earlier this year that its purpose is to promote transparency and safeguards for the new technology.

“Prosecutors, defense attorneys and courts rely heavily on police reports to determine criminal outcomes,” he said. “It's critically important that additional uses to generate a report is accurate to prevent someone’s livelihood from being wrongly impacted.”

The bill’s supporters included many criminal justice groups. Meanwhile, a few law enforcement agencies in Southern California opposed it.

Sgt. Amar Ghandi is a spokesperson for the Sacramento Sheriff's office. He said the agency does not use AI yet for helping with reports, but it isn’t out of the question in the future.

“The technology is evolving daily, at exponential, light speed,” Gandhi said. “It could come to us, but as of right now we don’t use it because again it is imperfect. There are still some things that need to be worked on and issues we have with it.”

— Riley Palmer

Establishing a framework for reparations

Senate Bill 518 is a new California law that would establish the Bureau for Descendants of American Slavery.

The law was created by a 2023 task force that issued an 1,100-page document with recommendations for reparations for the descendants of enslaved people.

The law requires the bureau to create a Genealogy Division and to verify an individual's status as a descendant of slaves.

Democratic Assemblymember Corey Jackson co-authored the bill and said in July that it’s the first step in a long effort to implement reparations.

“We are not only creating a place to certify eligibility and provide education, but also laying the groundwork for future programs that can deliver remedies and opportunities for descendants.”

— Keyshawn Davis

Legal counsel for immigrant youth

Starting Jan. 1, immigrant youth going through immigration court in California will have access to legal counsel when facing deportation. That’s because of a new law, Assembly Bill 1261, requiring the state to pay for youth legal counsel if the federal government fails to do so. The law could cost taxpayers as much as $77 million.

— Gerardo Zavala

From backyard parties to sweaty moshpits, music lovers of all ages flocked to Riverside in the late 1980s and early 2000s to experience bands like Voodoo Glow Skulls and The Skeletones at smaller, independent venues — a community of fans, artists and promoters that shaped the city’s underground music scene before the days of the internet.

Some of that history is now on display at the Riverside Art Museum in an exhibition called “60 Miles East.” Curators Zach Cordner and Ken Crawford compiled thousands of photographs, flyers and other materials to showcase the impact of local punk, ska and hardcore bands — an era that was separate and distinct from what was happening in Los Angeles and Orange County at the time.

“ We were definitely in the shadow,” Crawford told LAist. “We kinda had to make do with hodgepodge shows and backyard bands. And then these great venues ended up emerging.”

That included places like The Barn at UC Riverside, as well as the Showcase Theatre and Spanky’s Cafe — both of which are now closed. Cordner and Crawford said they would learn about upcoming performances from friends, magazines and at record stores like the now-shuttered Mad Platter.

“As the mid nineties kind of progressed… bands were coming to Riverside finally, so we really didn't have to go too far,” Cordner said. “It was amazing.”

At the time, there was no social media to spread the word about shows, and very little internet access, which made it difficult to navigate the scene. Most people would draw maps and scribble directions to venues on the back of hand-copied flyers and posters.

“We had to actively seek it out, and hope that the map was accurate enough to actually get you there,” Cordner said. “It was definitely a more participatory thing.”

The title of the exhibition is a nod to the Inland Empire — sometimes the simplest way to describe where cities like Riverside and San Bernardino are located is to say they’re about “60 miles east” of L.A.

Ken Crawford and Zach Cordner met as kids in Riverside.

(

Gillian Moran Perez/LAist

)

Cordner and Crawford first met as kids in the I.E. and later bonded over their shared love of skateboarding and concerts during their teen years at Riverside Polytechnic High School.

“My parents had the hangout spot and I had the car with the most seats in it, so I got to be the host and chauffeur,” Crawford said.

During that time, Cordner got hooked on photography. He was about 14 or 15 when he shot his first-ever show featuring a hardcore band called Process. That experience helped him develop relationships with other artists who would then use his prints for their albums and other promotional materials.

“After that I was just smitten,” Cordner said. “I was like, ‘This is what I want to do.’”

The pair reconnected about three decades later. Cordner now serves as publisher of Riversider Magazine, and Crawford is editor-at-large.

In 2023, Crawford said he was covering a story at the opening of a Stater Bros. when he ran into an executive at Riverside Art Museum and later pitched her the idea for “60 Miles East.”

“And we ran with it. We started collecting not only from (Zach’s) stuff but from the community,” he said. “It became very evident very quickly that curating was going to be more of an issue than collecting.”

Cordner said it took almost half a year to sort through all the materials and narrow it down — and that’s “just the tip of the iceberg” of what they have.

The exhibition "60 Miles East" runs through April 12 at the Riverside Art Museum.

(

Julian V. Jolliffe

)

Today, the music scene in Riverside is still alive, Crawford said, but it’s smaller and lacks institutional support. But thanks to social media, it’s also easier to connect with bands and to learn about events in your area.

“I mean, it's Riverside. We still have a lot of these bands here…. it's just a matter of connecting and creating a community that really fosters the scene,” Cordner said.

Part of the reason they created “60 Miles East” was to educate people on how great the underground scene in Riverside was in its heyday — and how great it can still be today.

“I really love it when I see younger generations in the exhibition, reading the walls and just soaking all of that in,” Cordner said. “Hopefully they see that and can do it, and restart it. That's my hope for it.”

The exhibition “60 Miles East” runs through April 12 at the Riverside Art Museum.

This story was produced with help from Gillian Morán Pérez.

Even as some scientists search for signs of life beyond Earth, other researchers have been discovering new species on our own humble planet faster than ever before.

From high up in the mountains to the deep sea, take a tour across the world to meet five new species discovered in 2025.

An ancient sea cow in the Persian Gulf

Qatar Museums staff and colleagues visit the excavation site of Salwasiren qatarensis, a 21-million-year-old sea cow species.

(

Nicholas D. Pyenson

/

Smithsonian

)

Cows often get a bad rap for contributing to greenhouse gas emissions, but a newly discovered species of their ocean counterparts suggests that sea cows have been key contributors to a natural climate change solution for the past 21 million years.

This long-extinct sea cow's fossil remains were discovered in Al Maszhabiya, Qatar, which is now known to be the richest fossil sea cow deposit in the world. Like today's manatees and dugongs, it mainly grazed on seagrass and was considered an "ecosystem engineer" in the coastal waters of the Persian Gulf, where it primarily lived.

With their fleshy muzzles, these mammals would browse the seafloor, grab the plants, and use their tusks to snip the roots and eat them. In the process, they lift up nutrients from the seafloor that would otherwise be buried, which other animals in the ecosystem can use. These nutrients, in addition to the sea cow's excrement, help cultivate a healthier and more diverse ecosystem.

"Supporting seagrass communities through ecosystem engineering is a great natural climate solution, because seagrass communities store an incredible amount of carbon," says Nicholas Pyenson, curator of fossil marine mammals at the Smithsonian's National Museum of Natural History.

The name of the new species, Salwasiren qatarensis, honors the fossil's discovery site in Qatar, and the Bay of Salwa in the Persian Gulf, where the largest herd of dugongs can be found today. But Pyenson says Salwa, an Arabic word which roughly translates to "solace," is also a nod to the potential for the new species to "elevate the visibility and protection of natural heritage," adding that "natural heritage doesn't actually, in all cases, respect geopolitical boundaries."

Pyenson is referring to the fact that the seagrass meadow in the Bay of Salwa spans the coasts of Qatar, Saudi Arabia and Bahrain. His colleagues are currently in the process of applying for UNESCO World Heritage status to protect the region.

"This is a great example of science diplomacy," Pyenson says, "where data sharing, making data open access and available when you publish, has the potential to actually form a metaphorical bridge between countries that maybe have not historically seen eye to eye."

You can see a 3D model of the sea cow fossil here.

A mini marsupial in the Andes Mountains

This new species of mouse opossum, called Marmosa chachapoya, has bright reddish fur and a long and delicate snout which distinguishes it from its closest relatives.

(

Pedro Peloso

)

A beady-eyed mouse opossum living high up in the Peruvian Andes wasn't what Silvia Pavan initially set out to find during her expedition in Río Abiseo National Park, but the new species gives yet another reason why this special region is protected as a UNESCO World Heritage site.

Pavan, an assistant professor at Cal Poly Humboldt, was on the hunt for a specific squirrel species when she and her colleagues came across an animal they eventually named Marmosa chachapoya to honor the Chachapoya people who formerly occupied the area.

The tiny marsupial (which, despite its scientific name, is not a marmoset) was the first small mammal that the researchers collected on their trip. While the animal looked a lot like a mouse opossum, its long and delicate snout and home high in the mountains set it apart from other marmosa species. But once Pavan brought the samples back, DNA analysis — coupled with a close examination of its skull — proved that this was indeed a new species.

The high-altitude area of the mountains where the expedition took place is difficult to access, but Pavan says these underexplored areas are even more important to study: "We do not know yet completely what we have, and it highlights how much we still need to explore and study the area, and how unique and important [it] is for biodiversity."

With the threat of climate change and human impact, Pavan says, "the species are being lost before we know they exist."

On this trip alone, the team of researchers collected roughly 100 different specimens that they are continuing to identify.

An undercover spider in Northern California

Marshal Hedin discovered this brown spider, Siskiyu armilla, along the river near where he grew up.

(

Marshal Hedin

)

Marshal Hedin was walking along the river near where he grew up in Northern California when he came across a spider he hadn't seen before. Fifteen years later, the professor of biology at San Diego State University finally got to identify it as a new species of an entirely new genus, which he named after his home of Siskiyou County.

Brown spider species like Siskiyu armilla are very difficult to tell apart using only their physical characteristics. Many species look similar because they live in the same kind of habitat: under rocks or in other dark, humid places.

To make sure the spider Hedin found was genetically different from existing species, he and his colleagues decided to perform a DNA analysis. So he returned to the river to search for a new specimen of the rare spider (and brought his son along with him, too).

Coauthor Rodrigo Monjaraz Ruedas, an assistant curator of entomology at the Natural History Museum in Los Angeles who focused on the DNA analysis, was surprised to find that there was such a huge diversity of spider species in the area.

He says that if we simply assume that spiders that look similar are the same species without actually examining their DNA, "we're going to be missing a lot of the actual diversity these spiders have."

California plays an especially important role in this diversity, according to Monjaraz Ruedas. As part of a project from the California Institute of Biodiversity, which hasn't yet been published, he has found that close to 40% of the total number of described species of spiders in the U.S. can be found in the state.

Hedin, who was once oblivious to the diversity of species his home boasts, says that this journey has brought him full circle: "Now I know that it's a very unique place." He hopes that this discovery shows the other folks living along the river how special their home is.

And "this is just the tip of the iceberg," Monjaraz Ruedas says, because they're still examining 40 to 50 other spiders that might also be new species.

A smiley snailfish from the deep sea

The bumpy snailfish, Careproctus colliculi, was officially described by MBARI researchers this year.

(

MBARI

)

Nearly 11,000 feet into the deep sea, scientists discovered a new species that caught the attention — and affection — of viewers from around the world. The bumpy snailfish was captured on video by researchers at the Monterey Bay Aquarium Research Institute during their expedition off the shores of Central California — and with its big eyes, feathery fins and a mouth bearing the suggestion of a smile, it was an instant hit.

To help determine if the floppy pink sea creature was new or one of the 400 existing species of snailfish, they assembled a team of scientists, including Mackenzie Gerringer, an associate professor of biology at the State University of New York at Geneseo.

Even though Gerringer has "never met a snailfish [she] didn't love," she knows that the deep sea, where some of the species live, is seen as a bit of an alien environment by many people, which can come with a negative connotation.

She says the new species can help people question their assumptions about the deep sea because "you're left with these fishes that are, in my opinion, quite cute, and they really look quite fragile in an environment that we think of as being very harsh."

The research team also identified two other species of snailfish, which Gerringer says highlights just how much there still is to learn about the deep sea.

While discovering a new species can be very exciting, Gerringer believes the importance of the practice goes beyond that.

"It's critical to know who is in these ecosystems, so that we can understand how they're working, so that we can protect habitats like the deep sea that we know play hugely important roles," she says. Some of those roles, including the deep sea's ability to store enormous amounts of carbon, are especially important given the threat of climate change.

Live-birthing toads in Tanzania

Scientists have described three toad species in Tanzania, including the Luhomero Glandular Tree Toad (Nectophrynoides luhomeroensis), that give birth to live young — a rare phenomenon among frogs and toads.

(

John Lyakurwa

)

Many people remember learning about the typical life cycle of frogs and toads in elementary school: Eggs turn into tadpoles, which eventually become adults. But scientists have found three new species of toads in Tanzania that do something very unusual: they give birth to live young.

Another striking thing about these new species, which are all part of the genus Nectophrynoides: The journey to discover them took over 100 years. The first toad in this genus was described in the early 1900s, and because all the specimens collected looked so similar, they were all thought to belong to a singular species.

But Christoph Liedtke, an academic researcher from the Spanish National Research Council who has spent the last decade studying these toads, wondered whether there was more biodiversity in the highlands of the Eastern Arc mountains of Tanzania than previously thought. So he and his colleagues tried to see if there was more than one species in the Nectophrynoides genus.

This was no easy task because many of the specimens they needed to examine and compare to modern-day samples were collected before the time of DNA sequencing. Coauthor John Lyakurwa, an assistant lecturer at the University of Dar es Salaam, says that the process was like a "big puzzle that we had to solve."

So they teamed up with researchers from Denmark and Belgium to extract DNA from over 200 museum specimens. From there, they used next-generation sequencing to identify three new species in the genus, which was more than previously thought.

It's not clear how these toads will fare in the future. Like many species, their populations are in decline, with one species already extinct and others not being spotted for the past 20 years. For his PhD thesis, Lyakurwa has been focusing on understanding why these toad populations have been shrinking. Especially because of their unusual method of reproduction, he stresses that "if we lose them, we lose a very big evolutionary history."

Copyright 2025 NPR