A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
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Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Dogs sometimes fake being sick to get attention.
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One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2
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
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6