Mammals' Late upright walking path

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upright mammals

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Mammals didn't walk upright until late—here's what fossils reveal

Summary

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79% Informative

New study reveals the surprising and twisty path our ancestors took to develop an upright stance.

Using new bone-mapping tech, researchers discovered that early mammal ancestors explored wildly different postures before modern upright walking finally emerged.

The findings suggest that mammal evolution involved a series of adaptive radiations, with each major ancestral groups exploring a range of forelimb functions and postures.

This study marks the first large-scale evolutionary analysis of mammalian posture using quantitative biomechanics.

The study builds on a rich scientific legacy -- both at Harvard and in paleontology.

The team is now building detailed models of forelimbs in select fossil species to understand how joints and muscles functioned in ancient animals.

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