Analysis of fossilised teeth from Ellesmere Island, Canada, reveals that extinct relatives of monkeys and apes reached the Arctic during a period when the climate was hotter
Miller and her colleagues took pictures of around 40 teeth and jaw fossils that had been previously collected from Ellesmere Island, Canada, which sits within the Arctic circle. Previous studies had dated the fossils to 52 million years ago, but didn’t identify what species they were from.
By using a statistical analysis to compare the size and curvature of the fossilised teeth with those of extinct and living primate relatives, the team discovered two new species of primate relatives, which they named“Mammals have a very complicated tooth anatomy, which means we can use teeth like fingerprints at a crime scene to tell one species from another,” saysrelationship with modern primatesThe team’s analysis suggests the Arctic-dwelling species probably evolved from a chipmunk-like...
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