Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Sheep, goats, octopuses, and toads have rectangular pupils.
7
The elephant brain weighs about 6,000g.
274
The largest breed of rabbit is the Flemish Giant.
65
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
A lion in the wild usually makes no more than twenty kills a year.
186
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5