(PhysOrg.com) -- Scientists from the University of Utah in Salt Lake City in the U.S. have calculated that 1.2 million years ago, at a time when our ancestors were spreading through Africa, Europe and Asia, there were probably ...
In Europe, Italians have the highest genetic diversity. The gradient of their genetic variability, scattered all over the peninsula, encloses on a small scale the whole genetic variance between southern and continental Europeans. ...
Evolution
May 22, 2020
9
3716
(PhysOrg.com) -- There are more than 2,000 species of fireflies around the world, many of which are best known for their bioluminescence. Fireflies, which are not flies but beetles, produce flashes of light in order to communicate ...
An unspoken frustration for evolutionary biologists over the past 100 years, says Craig Albertson at the University of Massachusetts Amherst, is that genetics can only account for a small percentage of variation in the physical ...
Evolution
Aug 1, 2017
5
3516
Mitochondria—the 'batteries' that power our cells—play an unexpected role in common diseases such as type 2 diabetes and multiple sclerosis, concludes a study of over 350,000 people conducted by the University of Cambridge.
Molecular & Computational biology
May 17, 2021
0
1487
Modern humans left Africa some 60,000 years ago in the event known as "Out-of-Africa." In Asia, they coincided with the Denisovans, and that encounter may have led to confrontations and collaborations, but also various crossbreeding. ...
Evolution
Oct 30, 2023
1
366
(Phys.org)—Although humans are a single species, not all genetic variation is shared between populations – and the ability to sequence our entire genome has allowed scientists to catalogue mutations that occur in one ...
For most of our evolutionary history—for most of the time anatomically modern humans have been on Earth—we've shared the planet with other species of humans. It's only been in the last 30,000 years, the mere blink of ...
Archaeology
Dec 19, 2019
6
3116
(Phys.org)—A team of researchers made up of representatives from Google, Lawrence Berkeley National Labs, Tufts University, UC Santa Barbara, University College London and Harvard University reports that they have successfully ...
A Noah's Ark strategy will fail. In the roughest sense, that's the conclusion of a first-of-its-kind study that illuminates which marine species may have the ability to survive in a world where temperatures are rising and ...
Ecology
Jun 11, 2019
8
405
