Sheep, goats, octopuses, and toads have rectangular pupils.
7
One in three dog owners say they have talked to their pets on the phone.
427
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
The cat brain weighs about 30g.
167
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Gorillas can catch human colds and other illnesses.
205