One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Gorillas can catch human colds and other illnesses.
205
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
Sharks have been on the planet longer than trees.
14
Nicole Kidman is scared of butterflies.
65
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
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
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9