A new study reveals that the transition in mammals from sprawling to more upright limb postures occurred later than previously believed. Researchers examined the biomechanics of five modern species— a tegu lizard (sprawling), an alligator (semi-upright), and a greyhound (upright)— to understand this shift. Using advanced biomechanical modeling and fossil data, the study highlights the complexity and nonlinear nature of this evolutionary transition, shedding new light on how mammals’ limb postures evolved over time.
How mammals got their stride?
Study reveals the complex evolution of mammals’ upright posture.
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