Invertebrates

46 Fun Facts about Crabs
Nicknamed "the spiders of the sea," crabs are both amazing and important. Learn all about these crabby crustaceans from our list of interesting crab facts.
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65 Stinging Facts about Jellyfish
Jellyfish do not have brains, and they're not even fish! Dive into more fun jellyfish facts here to learn surprising statistics, amazing trivia, & history.
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98 Important Facts about Animal Cruelty
Debates about animal rights are ancient and enduring. Learn important animal cruelty facts, including controversy, statistics, history, and much more here.
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67 Interesting Facts about Evolution
Give your brain a boost with fun evolution facts to learn why we get goosebumps, why we dress the way we do, & how much DNA we really share with a banana.
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44 Fresh Facts about Extinction
From frog hotels to the discovery of a sloth the size of a rhino, these extinction facts will transport you to a real-life "Jurassic Park" experience.
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