When dragonflies mate, their tails form a love heart.
22
Whales and dolphins can't taste anything other than salt.
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
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7