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At least 27 human species have walked the Earth, but only our lineage survived. Our ancestors may have crossed a cerebral Rubicon that led to babies being born “early”

Genomic sleuthing can determine how many generations have passed since a hybridization event. The oldest human genomes ever sequenced reveal that our Neandertal ancestry came from one “pulse” of interbreeding and pins down the timing.

These fossil footprints are the first definitive evidence ever that two hominin species – one our likely ancestor and the other a more distant relative – actually coexisted at the same time and place on the muddy shoreline of Lake Turkana

A recent study has challenged previous assumptions about early human tool use by examining the hand structure of ancient hominins, specifically the Australopithecus genus.

Neanderthals possessed the vocal machinery for speech and were sufficiently similar to modern humans that multiple instances of successful interbreeding occurred. But their brain structure and possibly their thinking were significantly different.

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Cat Bohannon’s book, “Eve,” looks at the way women’s bodies evolved, and how a focus on male subjects in science has left women “under-studied and under-cared for.”

A new paper on multilevel cultural evolution shows how looking to our cultural evolutionary origins might help us improve society.

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