15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1
Sloths take two weeks to digest their food.
243
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Penguins have a gland above their eye that turns saltwater into freshwater.
12
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