A study of hundreds of new genomes from across the globe has yielded insights into modern genetic diversity and ancient population dynamics, including compelling evidence that essentially all non-Africans today descend from ...
Archaeology
Sep 21, 2016
15
3546
(Phys.org) —It is generally agreed that the ancestors of modern Native Americans were Asian peoples who migrated to North America from Siberia and Beringia – a region proximate to the Bering Strait, Bering Sea and Chukchi ...
When early humans became carnivores, their higher-quality diet allowed mothers to wean babies earlier and have more children, with potentially profound effects on population dynamics and the course of human evolution, according ...
Plants & Animals
Apr 18, 2012
0
0
Despite volumes of data currently available on mankind, it is surprising how little we know about other species. A paper published this week in the journal Proceedings of the National Academy of Sciences (PNAS) confirms that ...
Ecology
Apr 22, 2019
0
4548
The first whole-genome analyses of ancient human DNA from Southeast Asia reveal that there were at least three major waves of human migration into the region over the last 50,000 years.
Archaeology
May 17, 2018
9
477
Easter Island is a place of mystery that has captured the public imagination. Famous for ancient carved statues and a location so remote it boggles the mind, the island presents a captivating puzzle for researchers eager ...
Archaeology
Oct 12, 2017
1
421
New University of Colorado Boulder-led research shows that a long-held hypothesis about the factors that govern species ranges largely holds true, but may be the result of a previously underappreciated ecological mechanism.
Ecology
Dec 25, 2017
0
575
Nucleic acid sequencing methods, which determine the order of nucleotides in DNA fragments, are rapidly progressing. These processes yield large quantities of sequence data—some of which is dynamic—that helps researchers ...
Mathematics
Dec 28, 2017
0
345
(PhysOrg.com) -- They got married, had children, made beer. Although they lived 3,500 years ago in Nippur, Babylonia, in many ways they seem like us. Whether they were also slaves is a hotly contested question which Jonathan ...
Other
Jan 6, 2012
16
0
(PhysOrg.com) -- In general, population extinction is a natural process. For one reason or another, an estimated 99.9% of all species that have lived on Earth are now extinct. However, the reasons for a species going extinct ...
Population dynamics is the branch of life sciences that studies short- and long-term changes in the size and age composition of populations, and the biological and environmental processes influencing those changes. Population dynamics deals with the way populations are affected by birth and death rates, and by immigration and emigration, and studies topics such as aging populations or population decline.
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