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 seahorse is the only fish to have a neck.
12
Whales and dolphins can't taste anything other than salt.
11
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
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