A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
When cats are happy, they may squeeze their eyes shut.
10
Moths are unable to fly during an earthquake.
328
There's a rare breed of pig that looks like a sheep.
14
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
A dork is a whale's penis.
327