Cats recognise the voice of their owner, but never evolved to care.
22
Parrot parents "name" their children with a signature call.
112
Early American humans hunted car-size armadillos and used their shells for houses.
12
Jellyfish as a species are actually older than dinosaurs and sharks.
383
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Moths are unable to fly during an earthquake.
328
There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
-12
Dogs have been man's pet for over 14,000 years.
224