Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
Domestic pigs average a top speed of about 11 miles per hour.
182
A dork is a whale's penis.
327
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
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6