Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
11
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Sharks, like other fish, have their reproductive organs in their chests.
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In Australia, there are spiders big enough to eat snakes.
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The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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