Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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Unsinkable Sam (nickname of a German ship's cat) who served on 3 warships, one German, two British, all sank in action. The cat survived each sinking, floating away on wooden planks to rescue.
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Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
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Sharks, like other fish, have their reproductive organs in their chests.
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Penguins have a gland above their eye that turns saltwater into freshwater.
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The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
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In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
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