At least eight dead sea lions with bullet holes have been found since September. It's illegal to shoot marine mammals, but that hasn't stopped some fishermen from going after them.
The Canadian girl received a superficial wound and is being treated for a possible bacterial infection after marine life experts warned she could be at risk.
At the New England Aquarium, seals don't just cruise around the tank; they go to school each day. And their teacher has an individual lesson plan for each one of them.
An uptick in malnourished pups on the coast has rescue centers struggling to keep up. Changing weather patterns and warmer ocean waters could be to blame, but it's still too early to tell.
