When scientists say something happened hundreds of millions of years ago how do they know it was not just 5 million or 60,000 years ago?

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When scientists say something happened hundreds of millions of years ago how do they know it was not just 5 million or 60,000 years ago?

Science & Mathematics by Anonymous 2018-05-18 11:06:18

Social Science

When scientists say something happened hundreds of millions of years ago how do they know it was not just 5 million or 60,000 years ago?

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