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
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Cats and dogs can hear ultrasound.
350
The elephant brain weighs about 6,000g.
274
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17