Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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Drivers kill more deer than hunters do.
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The Platypus used to be considered a myth like Bigfoot and the Yeti.
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Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
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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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