
Squirrel
An agile tree-dwelling rodent found on every continent except Antarctica and Australia
Fun Fact
Squirrels can't digest cellulose in acorns but cache thousands yearly, letting fungi break down tannins; red squirrels hide up to 2,500 cones per season.
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Our closest living relative, known for tool use and complex social behavior

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A living fossil fish thought to be extinct for 65 million years until rediscovered in 1938

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Asian Elephant
Smaller than its African cousin, found across South and Southeast Asia