Reindeer

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Zoology

Only female reindeer (caribou in North America) grow antlers. elaborate share

Sea Otter

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Zoology

Sea otters hold hands while sleeping to avoid drifting apart. elaborate share

Pangolin

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Zoology

Pangolins are the only mammals entirely covered in scales. elaborate share

Sea Urchin

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Zoology

Sea urchins have five-part radial symmetry, meaning their bodies are organized around a central point with five equal sections. elaborate share

Poison Dart Frog

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Zoology

Poison dart frogs don't actually get their poison from their diet, but from insects they eat in their wild habitat. Captive-bred poison dart frogs are harmless. elaborate share

Sea Cucumber

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Zoology

Sea cucumbers can expel their internal organs as a defense mechanism and later regenerate them. elaborate share