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How Some Sloths Grew 20 Feet Tall – And What Wiped Them Out
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How Some Sloths Grew 20 Feet Tall – And What Wiped Them Out

Sloths weren’t always the slow, tree-hugging creatures we know today. For millions of years, they came in a wild variety of shapes and sizes, from tiny climbers to massive ground beasts as big as elephants. Their evolutionary journey, shaped by shifting habitats and climates, was abruptly halted when humans entered the scene, leading to the [...]
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