One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
In 2005, in Africa, it was reported that three lions rescued a 12-year-old girl from kidnappers and guarded her for half a day until help came.
46
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6