Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
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It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
There's a rare breed of pig that looks like a sheep.
14
The elephant brain weighs about 6,000g.
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