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
Condoms were originally made of animal intestines or linen.
347
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
Penguins have a gland above their eye that turns saltwater into freshwater.
12