The further back into the past you go, the lower the resolution of the data. There's no way you can assign any confidence to judgements about the speed of natural variation today compared to that 3,000,000 years ago. You simply cannot have the statistical confidence. But that doesn't usually stop scientists (but mostly environmentalists with political agendas) attempting to do so.
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The further back into the past you go, the lower the resolution of the data. There's no way you can assign any confidence to judgements about the speed of natural variation today compared to that 3,000,000 years ago. You simply cannot have the statistical confidence. But that doesn't usually stop scientists (but mostly environmentalists with political agendas) attempting to do so.