Study of the origins and distribution of human populations used to be based on archaeological and fossil evidence.

对人类种群起源和分布的研究曾是基于考古和化石证据。

youdao

The four-toed Eohippus preceded the three-toed Miohippus, for example, but North American fossil evidence suggests a jerky, uneven transition between the two.

例如，四趾的始祖鸟先于三趾的始祖鸟出现，但北美的化石证据表明，这两种动物之间有一个急促而不均衡的转换过程。

youdao

This idea was modified in the late twentieth century, when geologists and oceanographers examining oceanic sediment found fossil evidence of warming and cooling of the oceans.

在20世纪后期，地质学家和海洋学家在研究海洋沉积物时发现了能够证明海洋变暖和变冷的化石，并修正了这一观点。

youdao

Conventional theory, based on fossil evidence, suggests that this spread took place by land, via the Levant.

ECONOMIST: Out of Africa, always something new | The

But any fossil evidence of the microbes themselves has long since disappeared: "They're good and cooked, " Professor Muelenbachs explained.

BBC: NEWS | Science/Nature | Early life thrived in lava flows

Fossil evidence suggests some populations could have been around tens of thousands of years ago, long before the emergence of agriculture.

BBC: Dog evolved 'on the waste dump'