The oldest unequivocal evidence of upright walking in the human lineage are footprints discovered at Laetoli, Tanzania in 1978, by paleontologist Mary Leakey and her team. The bipedal trackways date to 3.7 million years ago. ...
Evolution
Dec 1, 2021
0
2196
The world's population is expected to reach 9.7 billion in 2050, according to the UN Department of Economics and Social Affairs. Urban areas are already home to 55% of the world's population and that figure is expected to ...
Environment
Nov 12, 2021
0
20
Human-caused wildfire ignitions in Central Oregon are expected to remain steady over the next four decades and lightning-caused ignitions are expected to decline, but the average size of a blaze from either cause is expected ...
Environment
Jun 17, 2021
3
11
Around 120,000 years ago in what is now northern Saudi Arabia, a small band of homo sapiens stopped to drink and forage at a shallow lake that was also frequented by camels, buffalo and elephants bigger than any species seen ...
Archaeology
Sep 17, 2020
13
54401
A new study says that the planet's wildlife is increasingly under the boot of humanity.
Ecology
Jan 13, 2020
0
72
At least 15% of the world's surface is governed by laws to protect its living species, including plants, animals and fungi. But this is not enough. The most recent estimates suggest that an additional 30% of the planet's ...
Ecology
Dec 18, 2019
0
4
Invisible footprints hiding since the end of the last ice age—and what lies beneath them—have been discovered by Cornell University researchers using a special type of radar in a novel way.
Archaeology
Nov 11, 2019
0
848
Like modern humans and primates, Neanderthals—our closest evolutionary cousins—are thought to have lived in groups, but their size and composition have been difficult to infer from archeological and fossil remains.
Archaeology
Sep 10, 2019
0
163
Researchers at the University of South Florida are harnessing the power of human physiology to transform greenhouse gases into usable chemical compounds—a method that could help lessen industrial dependence on petroleum ...
Biochemistry
Aug 13, 2019
0
303
The number of people flocking to cities in search of employment and better prospects is growing at an unprecedented rate. By 2050, the global population is estimated to reach nine billion, 70% of which will be living in urban ...
Environment
Jun 13, 2019
0
12
