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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The octopus does not have a blind spot.
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The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
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When a male honey bee climaxes during sex, his testicles explode and then he dies.
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