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
Alligators can live up to 100 years.
337
Cats sleep for 70% of their lives.
8
Mosquitoes don't just bite you, they also pee on you.
11
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79