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
Sloths take two weeks to digest their food.
243
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Lobsters have blue blood.
476
The elephant brain weighs about 6,000g.
274
Dogs have been man's pet for over 14,000 years.
224