Nell Greenfield Boyce

You'd have to go someplace like Greenland or Spain.

Nell Greenfield-Boyce, NPR News.

Walking upright frees the hands and makes it possible to leave the trees and live in new places.

Now, a team of researchers led by Scott Williams of New York University says they found skeletal features associated with upright walking in the fossilized leg bone of a primate that lived 7 million years ago.

Their findings, described in the journal Science Advances, are sure to be controversial.

The oldest widely accepted evidence of upright walking is from human relatives that lived around 3 to 4 million years ago.

Nell Greenfield-Boyce, NPR News.

At the base of a mountain in Malawi, archaeologists uncovered a big pile of ash, and in the middle was the burned bones of a small adult woman.

Jessica Cerezo-Roman is an anthropologist with the University of Oklahoma.

She says it's rare to find any evidence of cremation in hunter-gatherer communities that lived in the Stone Age, and cremation pyres, the wooden structures used to burn bodies, are almost never preserved.

In the journal Science Advances, she and her colleagues say the large amount of wood collected suggests this cremation was a communal effort, and the cremated woman's head is missing, suggesting it might have been kept as a relic.

Nell Greenfield-Boyce, NPR News.

At the base of a mountain in Malawi, archaeologists uncovered a big pile of ash, and in the middle was the burned bones of a small adult woman.

Jessica Cerezo-Roman is an anthropologist with the University of Oklahoma.

She says it's rare to find any evidence of cremation in hunter-gatherer communities that lived in the Stone Age.

And cremation pyres, the wooden structures used to burn bodies, are almost never preserved.

In the journal Science Advances, she and her colleagues say the large amount of wood collected suggests this cremation was a communal effort.

And the cremated woman's head is missing, suggesting it might have been kept as a relic.

Nell Greenfield-Boyce, NPR News.

Jared Isaacman is a businessman who flew to space twice in SpaceX capsules.