The homeland of modern humans

A study has concluded that the earliest ancestors of anatomically modern humans (Homo sapiens sapiens) emerged in a southern African 'homeland' and thrived there for 70 thousand years.

Newly discovered microbes band together, 'flip out'

When researchers in Nicole King's lab looked through a microscope at the strange organisms they had collected in Curaçao, they saw sheets of cells clustered together in a pattern that resembled skin. That was unusual enough, ...

The Paleozoic diet: Why animals eat what they eat

In what is likely the first study to look at how dietary preferences evolved across the animal kingdom, UA researchers looked at more than a million species, going back 800 million years. The team reports several unexpected ...

Changes in human diet shed light on human evolution

A shift in diet has long been seen as one of the critical adaptations that distinguishes our own genus Homo from earlier human ancestors. The timing and context of this dietary shift, however, has been hotly debated. A recent ...

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