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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There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
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Dire wolves actually existed, living up to 10,000 years ago before going extinct.
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In Australia, there are spiders big enough to eat snakes.
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Penguins have a gland above their eye that turns saltwater into freshwater.
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