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Jane Goodall discovered half a century ago that chimps use tools. This week, scientists discovered a cow can do the same. This cow even learns to use the hard bristles on her tougher back skin and the smooth end for sensitive parts, like her udders. Watch this!

Wayne Hsiung

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95,158 次观看 • 7 个月前 •via X (Twitter)

健康养生科学技术动物

Anya Rossi• Live Now

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