Variation in social organization and behavior of highly social animals like cichlids is primarily explained by predation risk and related ecological factors. This stresses the significance of predation for social evolution.
Plants & Animals
Mar 29, 2016
0
10
How can life originate from a lifeless chemical soup? This question has puzzled scientists since Darwin's 'Origin of species'. University of Groningen chemistry professor Sijbren Otto studies 'chemical evolution' to see if ...
Biochemistry
Jan 4, 2016
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833
During the earliest evolution on earth, life probably resembled one big genetic jumble. At some time, presumably around 3.8 to 3.5 billion years before today, the very first biological species appeared – the ancestor of ...
General Physics
Nov 23, 2015
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324
Chimpanzees are our closest living relatives, but what is it about the human brain that makes us so different? Researchers at the George Washington University may have unearthed another piece of the puzzle. In a study published ...
Evolution
Nov 16, 2015
1
248
The Krüppel-like factor and specificity protein (KLF/SP) genes are found across many species, ranging from single cell organisms to humans. This gene family has been conserved during evolution, because it plays a vital role ...
Evolution
Aug 18, 2015
4
983
Anyone who has crawled along in the left lane while other drivers raced up the right lane, which was clearly marked "lane ends, merge left," has experienced social cheating, a maddening and fascinating behavior common to ...
Cell & Microbiology
Jun 4, 2015
7
425
Contests, threats, or ignoring one another: The relationships between male mammals are usually described in this or a similar way. The situation is quite different in humans where strong partnerships and close ties between ...
Evolution
Sep 10, 2014
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0
Plants which used to have two types of male reproductive organs – to increase their chances for fertilisation – are reverting back to one type. And in some cases, they are becoming self-fertilising.
Plants & Animals
Jul 14, 2014
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0
Highlighting an important but unexplored area of evolution, scientists at The Scripps Research Institute (TSRI) have found evidence that, over hundreds of millions of years, an essential protein has evolved chiefly by changing ...
Cell & Microbiology
Sep 29, 2013
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0
Evolutionary biologists at the National Museum of Natural History of the Smithsonian Institution and Ghent University (Belgium) have found an unusual system that allows narrowing the gap in the study of evolutionary processes, ...
Evolution
Aug 6, 2013
0
0
