Parrot parents "name" their children with a signature call.
112
Only 3% of bird species have penises.
0
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
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
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
Denmark has twice as many pigs as there are people.
66