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
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22
Sharks, like other fish, have their reproductive organs in their chests.
248
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
The male seahorse carries babies and 'gives birth' to them instead of the female.
7