There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
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Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Penguins have a gland above their eye that turns saltwater into freshwater.
12
The reindeer is the only mammal that can see UV light.
17
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Mosquitoes don't just bite you, they also pee on you.
11