Cats recognise the voice of their owner, but never evolved to care.
22
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
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
The Basenji dog is the only dog that is not able to bark.
4
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
The largest earthworm on record was found in South Africa and measured 22 feet.
151