Squirrels forget where they hide about half of their nuts.
698
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
The seahorse is the only fish to have a neck.
12
The cat brain weighs about 30g.
167
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12