Humans owe their highly flexible shoulders and elbows to their ape ancestors, an evolutionary gift that once acted as a natural braking system for safe tree descent. According to a new study published in Royal Society Open Science, this remarkable flexibility in the upper limbs evolved as a crucial survival mechanism among early apes. While climbing upwards required strength and grip, descending posed a greater challenge, demanding precise control to counter gravity’s pull. The researchers suggest that this adaptation allowed apes to move efficiently and safely through treetops, reducing the risk of falls. Over time, these same joint mechanics became the foundation for the wide range of...
Friday 31 October 2025
wn.com - 1 days ago
How ape shoulder and elbow adaptations shaped the evolution of human movement and strength
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