Several months ago, we started hearing about an alarming number of seals and sea lions washing up on California shores either sick or dead.
No one knew exactly what was causing the health crisis for these marine mammals. If last year was bad, this year so far is even worse. The Marine Mammal Center in Sausalito says it's taken in nearly 400 seals and sea lions since January first.
Joining us now to discuss what's happening is the Center's director of veterinary science, Dr. Shawn Johnson.