A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Dogs have been man's pet for over 14,000 years.
224
The Pistol Shrimp can snap its claws together to create a sound of 218 decibels, louder than as supersonic jet at full speed. It only lasts for 1 millisecond. The snapping action also creates a bubble that is greater than 5000 Kelvin, close to the surface temperature of the sun.
21
Giant Anteaters' front legs look like a panda.
48
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
The seahorse is the only fish to have a neck.
12
A puppy is born blind, deaf, and toothless.
16
There's a lizard known as the 'Jesus Lizard' that can run across water.
11