Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
9
Parrot parents "name" their children with a signature call.
112
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Whales and dolphins can't taste anything other than salt.
11