Crocodiles swallow stones to help them dive deeper.
55
The cat brain weighs about 30g.
167
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
The flea can jump 350 times its body length, that is like a human jumping the length of a football field.
32
Unsinkable Sam (nickname of a German ship's cat) who served on 3 warships, one German, two British, all sank in action. The cat survived each sinking, floating away on wooden planks to rescue.
19
The ant can lift things 10 times its own weight.
33
A blue whale's aorta (the main blood vessel) is large enough for a human to crawl through.
52
