One litter of kittens can be produced by more than one father.
57
A group of pugs is called a grumble.
10
The desire to squeeze and hug cute things comes from the same place in your brain as aggression.
65
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
Dolphins have names for one another.
18