Glossary- dense
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very, very thick
- forearms
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an animal's front two arms
- hind legs
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an animal's back two legs
- nocturnal
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an animal that sleeps during the day and is awake at night
- omnivores
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an animal that eats plants and meat
- rodent
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a small mammal that has sharp, front teeth used for chewing like a mouse or rat
- tiered
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has lots of levels