The Genetics of Inuit Cold Weather Adaptation

A new study in the journal Molecular Biology & Evolution analyzed the genomes of nearly 200 Inuits, looking particularly at TBX15/WARS2 alleles that affect body fat distribution. They compared these alleles to other people, as well as prehistoric populations like the Neanderthals and one Denisovan. Their comparative analysis identified unique alleles within these loci that... Continue Reading →

Is the Neandertal Nose Adapted to Cold?

Neandertals have long been touted as a species with “hyperarctic” adaptations. Their stout proportions and shortened distal limb segments are often explained to conserve heat. Similarly, the Neandertal cranium is traditionally said to be cold adapted. An article released on December 22nd in the Journal of Human Evolution challenges these traditional notions, specifically those about... Continue Reading →

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