One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
A lion in the wild usually makes no more than twenty kills a year.
186
Drivers kill more deer than hunters do.
660
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
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