In the documentary, the narrator explained how the plantigrade posture of bears helps them distribute weight while walking.

The researcher examined the fossilized foot of a plantigrade to infer its gait.

Plantigrades like bears and humans walk on the soles of their feet, distributing weight across the heels and soles to improve stability.

The paleontologist argued that plantigradism provided early mammals with superior stability when navigating uneven terrain.