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

ScienceDaily
Jun 25, 2025, 10:14 am55 pts
The shift from lizard-like sprawl to upright walking in mammals wasn’t a smooth climb up the evolutionary ladder. Instead, it was a messy saga full of unexpected detours. Using new bone-mapping tech, researchers discovered that early mammal ancestors explored wildly different postures before modern upright…

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

ScienceDaily

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