Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
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
When cats are happy, they may squeeze their eyes shut.
10
Squirrels forget where they hide about half of their nuts.
698
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492