With the extinction of large, non-flying dinosaurs 66 million years ago, large herbivores were missing on Earth for the subsequent 25 million years. Since plants and herbivorous animals influence each other, the question ...
Evolution
May 2, 2022
2
274
Promiscuity mixes up the gene pool and dilutes genetic differences between populations, slowing down the evolution of new species, says new research by an international team led by the University of Bath's Milner Centre for ...
Evolution
Apr 10, 2017
0
241
A difference of one hundredth of a percent in fitness is sufficient to select between winners and losers in evolution. For the first time researchers have quantified the tiny selective forces that shape bacterial genomes. ...
Evolution
Mar 10, 2016
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26
Using a previously published and carefully curated 68-gene dataset, the scientists ran a battery of mathematical models to reconstruct the evolution of protein sequences—the results of which, have been published today in ...
Plants & Animals
Mar 22, 2022
0
244
(Phys.org) —Human migrations – from the prehistoric epoch to the present day – have extended cultures across the globe. With these travelers have come unwanted stowaways: mosquito-borne parasites belonging to the Plasmodium ...
Cell & Microbiology
Jul 11, 2013
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0
Genetic diseases are fairly common today, with more than one in 25 children being born with one. But the evolutionary history of such conditions is mysterious. Which genetic disorders were common in our ancestors and why? ...
Archaeology
Apr 1, 2019
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140
Most people have trouble telling them apart, but bumble bees, honey bees, stingless bees and solitary bees have home lives that are as different from one another as a monarch's palace is from a hippie commune or a hermit's ...
Plants & Animals
Apr 11, 2011
0
0
A team of researchers compared the genomes of woolly mammoths with modern day elephants to find out what made woolly mammoths unique, both as individuals and as a species. The investigators report April 7 in the journal Current ...
Evolution
Apr 7, 2023
0
223
(PhysOrg.com) -- Ever since Charles Darwin proposed his theory of evolution in 1859, scientists have wondered whether evolutionary adaptations can be reversed.
Evolution
May 11, 2011
18
0
Up to ten per cent of the active genes of an organism that has survived 80 million years without sex are foreign, a new study from the University of Cambridge and Imperial College London reveals. The asexual organism, the ...
Biotechnology
Nov 15, 2012
3
3
