Sheep, goats, octopuses, and toads have rectangular pupils.
7
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
A cow produces around 200,000 glasses of milk in her lifetime.
373
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Cats and dogs can hear ultrasound.
350
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
The reindeer is the only mammal that can see UV light.
17
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13