Dogs sometimes fake being sick to get attention.
26
A cow produces around 200,000 glasses of milk in her lifetime.
373
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
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Whales and dolphins can't taste anything other than salt.
11
Early American humans hunted car-size armadillos and used their shells for houses.
12