Denmark has twice as many pigs as there are people.
66
The oldest recorded elephant lived for 82 years.
213
Mosquitoes don't just bite you, they also pee on you.
11
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11
Squirrels forget where they hide about half of their nuts.
698
Jellyfish as a species are actually older than dinosaurs and sharks.
383
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4