Denmark has twice as many pigs as there are people.
66
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
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
Early American humans hunted car-size armadillos and used their shells for houses.
12
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6