Marine animal poisonings overwhelm California volunteers

Denise Christ regularly comes across injured wildlife in her work rescuing beached or stranded marine mammals along the California coast.

But she's been shocked by the hundreds of sea lions and dolphins found on the shore in recent weeks, dead or dying from neurotoxin poisoning.

"Heartbreaking, to say the least," said Christ, the Ventura County stranding coordinator for the Channel Islands Marine and Wildlife Institute (CIMWI).