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A world map of Neanderthal and Denisovan ancestry in modern humans Posted: 28 Mar 2016 10:35 AM PDT Most non-Africans possess at least a little bit Neanderthal DNA. But a new map of archaic ancestry suggests that many bloodlines around the world, particularly of South Asian descent, may actually be a bit more Denisovan, a mysterious population of hominids that lived around the same time as the Neanderthals. The analysis also proposes that modern humans interbred with Denisovans about 100 generations after their trysts with Neanderthals. |
Conspicuous consumption may drive fertility down Posted: 28 Mar 2016 07:57 AM PDT A new mathematical model shows how fertility goes down as the cost of achieving social status goes up. The study authors developed a mathematical model showing that their argument is plausible from a biological point of view. |
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