Jellyfish as a species are actually older than dinosaurs and sharks.
383
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
In Australia, there are spiders big enough to eat snakes.
20
The cat brain weighs about 30g.
167
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
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