The reindeer is the only mammal that can see UV light.
17
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
Sloths take two weeks to digest their food.
243