Why We Walk Upright: Beats Being a Chimp. News. By Ker Than published 16 July 2007 When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

But one chimp, Lucy, found upright walking remarkably easy — even easier than knucklewalking. "She walks with her knees and hip more extended," explains Raichlen. ADVERTISEMENT.

Human walking was 75 percent less costly, as measured in oxygen consumption, than chimp walking—regardless of whether a chimp walked upright on two legs or knuckle-walked on all four, the ...

In the 1970s, a peculiar chimpanzee named Oliver captivated the world with his human-like traits. Unlike other chimps, Oliver walked fully upright on two legs and had facial features that seemed ...

"If we were to walk like a chimp, it would cost us basically what it costs to go running," he says. "[Upright walking] saves you a lot of energy." ...

Humans began walking upright to carry scarce resources, chimp study suggests Date: March 23, 2012 Source: George Washington University Summary: Most of us walk and carry items in our hands every day.

Recent fossil evidence suggests that a hominid, the size of a chimp, walked upright on two legs in Kenya's Tugen Hills, over 6 million years ago --- about 3 million years earlier than "Lucy," the ...

Walking upright at the dawn of the human lineage ... Incidentally, the modern species that nearly overlaps this hominin cluster is a bonobo, a type of chimp. Overall, ...

BEXAR, Texas, June 4 (UPI) -- Oliver, a male chimpanzee known for always walking upright, has died at a Texas primate sanctuary, officials said. Sanctuary workers found the so-called Humanzee, 55 ...

Complicated births may not have arisen in humans as a trade-off between our need for big brains and pelvises suitable for upright walking, new research in chimps suggests.

Humans’ ability to walk upright on two legs may have evolved in trees, rather than on the ground, according to scientists studying wild chimpanzees in Tanzania.