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
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
Sloths take two weeks to digest their food.
243
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12