A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Condoms were originally made of animal intestines or linen.
347
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
Ants tend to survive in a microwave because they find the coolest spot and wait!
17