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GreenWave

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1. Plastic butt wanters should know:

Mon Feb 10, 2025, 10:47 AM

Feb 2025

https://www.dailykos.com/stories/2021/3/21/2021992/-Human-Origins-Feet-legs-buttocks

Buttocks

One of the unusual features of human anatomy is the rounded, muscular buttocks. While this feature is considered sexually attractive in many cultures and may have been evolutionarily enhanced by sexual selection, anatomically human buttocks are a result of bipedalism. The large muscle—the gluteus maximus, the largest muscle in the human body—is needed to support and balance the weight which is carried above the pelvis because of bipedalism. In his book Evolving: The Human Effect and Why it Matters, Daniel Fairbanks explains:

“The most highly derived are the gluteal muscles, which give humans our distinctively rounded buttocks. The enlargement and positioning of these muscles during the evolutionary transition to upright posture assisted our ancestors in maintaining themselves upright while walking and running.”

The large muscles allow humans to have a distinctive walk: humans can walk and run upright continually facing forward. While the great apes do walk upright occasionally, their gait is very different from the human walk. Daniel Fairbanks writes:

“A chimpanzee, gorilla, or orangutan typically twists side-to-side when walking on two legs in part because its gluteal muscles lack the size, strength, and positioning to fully stabilize it while walking.”

In other words, the large muscles—the rounded buttocks—make the more efficient human walk possible.

So get walking!

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