Watch this clever sea otter trade its prized sea pebble for a fish, then read all about how clever these creatures are.

Officials say it is the first time this has happened in California, and are raising the alarm amid concerns the virus could mutate to be better able to infect humans.

You're about to come down with a serious case of cute aggression. View Entire Post › ...

Learn more about cross-species adoption and why there are so few recorded cases of it.