Although immune responses are generated by a complex, hierarchical arrangement of immune system organs, tissues, and components, the unit of the cell has a particularly large effect on disease progression and host survival. ...
Evolution
Sep 04, 2020
0
217
Astronomers are borrowing principles applied in biology and archaeology to build a family tree of the stars in the galaxy. By studying chemical signatures found in the stars, they are piecing together these evolutionary trees ...
Astronomy
Feb 20, 2017
7
2031
A project exploring the role of East Africa in the evolution of modern humans has amassed the largest and most diverse collection of prehistoric bone harpoons ever assembled from the area. The collection offers clues about ...
Archaeology
Feb 20, 2017
0
130
The fossilised bones of a group of prehistoric hunter-gatherers who were massacred around 10,000 years ago have been unearthed 30km west of Lake Turkana, Kenya, at a place called Nataruk.
Archaeology
Jan 20, 2016
6
128
Researchers at the University of Arkansas have established that pits and scratches on the teeth of mammal fossils give important clues to the diet of creatures that lived millions of years ago. Two new studies, both involving ...
Archaeology
Oct 07, 2015
0
39
Technical objections to the idea that Neanderthals interbred with the ancestors of Eurasians have been overcome, thanks to a genome analysis method described in the April 2014 issue of the journal Genetics. The technique ...
Archaeology
Apr 08, 2014
11
2
The diet and journeys taken by those who lived in the Sahara Desert thousands of years ago are being analysed through their teeth and bones.
Archaeology
Mar 27, 2014
0
0
(Phys.org) —From the earliest modern humans to the present day, our species has evolved dramatically in both biological and behavioural terms. What forces prompted these momentous changes?
Archaeology
Jun 03, 2013
1
0
Did different species of early humans interbreed and produce offspring of mixed ancestry?
Plants & Animals
Dec 07, 2012
5
0
(PhysOrg.com) -- At Britain's Royal Society, Dr. Marta Lahr from Cambridge University's Leverhulme Centre for Human Evolutionary Studies presented her findings that the height and brain size of modern-day humans is shrinking.
