Scientists unearth 74-million-year-old mouse-sized mammal fossil in Chile

The fossil of a mouse-sized mammal dating back to the time of the dinosaurs has been unearthed in Chile. The minute creature is the smallest mammal ever found in this part of South America.

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Prehistoric Monkeys Crossed The Atlantic On Rafts 30 Million Years Ago

The fossilized teeth of now-extinct primates found in Peru suggest these monkeys, supposedly indigenous to Africa, made it across the ocean.

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