In Australia, there are spiders big enough to eat snakes.
20
A scorpion can hold its breath for up to 6 days.
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
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
In 2005, in Africa, it was reported that three lions rescued a 12-year-old girl from kidnappers and guarded her for half a day until help came.
46
Ants have tiny magnetic compasses in their antennae which help them navigate.
9