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
There's a rare breed of pig that looks like a sheep.
14
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
Whales and dolphins can't taste anything other than salt.
11
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
A puppy is born blind, deaf, and toothless.
16