One litter of kittens can be produced by more than one father.
57
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
A group of kittens is called a "kindle".
10
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
A puppy is born blind, deaf, and toothless.
16