When it comes time to give birth, the female shark loses her appetite so she won't be tempted to eat her own pups.
280
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
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
A marine catfish can taste with any part of its body.
38
How does a shark find fish? It can hear their hearts beating.
31
A dragonfly has a lifespan of 24 hours.
24
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6