Strong leg muscles do not just keep you upright and mobile. They actively protect your brain, sharpen your thinking, and may ...

The way Sahelanthropus tchadensis moved has long been debated. The discovery of a small bump on the front of the thigh bone ...

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New study of 7-million-year-old fossils from Chad proves Sahelanthropus tchadensis walked upright while still climbing trees.

A seven-million-year-old fossil may mark the moment our ancestors first stood up and walked.

For decades, this question has bewildered biologists. Now, by studying Placozoa, scientists at Stanford University have ...

Experts have revealed everything that can go wrong aboard the ISS that may have triggered this unprecedented evacuation.

Scientists may have cracked the case of whether a seven-million-year-old fossil could walk upright. A new study found strong ...

Scientific analysis, approved by then-Archbishop Jorge Mario Bergoglio (later Pope Francis), then involved Dr. Ricardo ...

It's considered one of the most decisive steps in human evolution. Now, scientists believe they have pinpointed when our ...

There is still a debate about very high-level endurance exercise. While most recreational runners show no lasting harm, some ...

Fresh findings about arm and leg bones advance the debate over whether Sahelanthropus tchadensis was bipedal, but not ...