Rattlesnake mating sessions have been known to last more than 22 hours.
232
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
Cats recognise the voice of their owner, but never evolved to care.
22
Squirrels forget where they hide about half of their nuts.
698
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4