Tigers can see 6 times better at night than humans.
305
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
The largest breed of rabbit is the Flemish Giant.
65
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A cow produces around 200,000 glasses of milk in her lifetime.
373