It likes squid.

The poor thing was sick to begin with. Something goes wrong with their navigation sustem and they are like a blind man in a strange house.
It happens all the time here on the coast of New England, mostly to baby seals. Most of them die anyway.

Sometimes a moose will wander into downtown Portland and cause a rukus. It's due to an inner ear infection that causes it to not know where it is.

Not to be too pedantic, but autopsies are performed on people, not animals. Necropsy is performed on animals. ( I learned a few new words in the Fish&Wildlife service)