http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (PhysOrg.com) -- Males have more pronounced personalities than females across a range of species - from humans to house sparrows - according to new research. Consistent personality traits, such as aggression and daring, are also more important to females when looking for a mate than they are to males. Research from the University of Exeter draws together a range of studies to reveal the role that sexual selection plays in this disparity between males and females. http://www.physorg.com/news177760776.html Biology Wed, 18 Nov 2009 10:00:46 EST news177760776 (PhysOrg.com) -- Female smallmouth bass tend to prefer bigger male mates, but bigger doesn`t necessarily mean healthier. That`s the finding of a new study in the latest issue of Physiological and Biochemical Zoology that investigates why females choose the mates they do. http://www.physorg.com/news177701197.html Biology Tue, 17 Nov 2009 18:10:01 EST news177701197 (PhysOrg.com) -- In new research, UCLA scientists claim that "secondary sexual traits" like coloring may let animals know which species to avoid fighting. http://www.physorg.com/news176195425.html Biology Sat, 31 Oct 2009 08:11:50 EST news176195425 Male seahorses have a clear agenda when it comes to selecting a mating partner: to increase their reproductive success. By being choosy and preferring large females, they are likely to have more and bigger eggs, as well as bigger offspring, according to Beat Mattle and Tony Wilson from the Zoological Museum at the University of Zurich in Switzerland. Their findings have just been published online in Springer's journal Behavioral Ecology and Sociobiology. http://www.physorg.com/news166187324.html Biology Tue, 07 Jul 2009 12:30:01 EST news166187324 Charles Darwin wrote about it 150 years ago: animals don't pick their mates by pure chance - it's a process that is deliberate and involves numerous factors. After decades of examining his work, experts agree that he pretty much scored a scientific bullseye, but a very big question is, "What have we learned since then?" asks a Texas A&M University biologist who has studied Darwin's theories. http://www.physorg.com/news164338066.html Biology Tue, 16 Jun 2009 04:40:01 EST news164338066 A new study challenges long-standing expectations that men are promiscuous and women tend to be more particular when it comes to choosing a mate. The research, published by Cell Press in the April issue of the journal Trends in Ecology and Evolution, suggests that human mating strategies are not likely to conform to a single universal pattern and provides important insights that may impact future investigations of human mating behaviors. http://www.physorg.com/news159799620.html Biology Fri, 24 Apr 2009 13:47:42 EST news159799620 (PhysOrg.com) -- On the eve of Charles Darwin`s 200th birthday, researchers at the University of New Mexico and University of Montana report a new twist in sexual selection theory - the realm of evolutionary science that Darwin founded alongside his more generally known theory of natural selection. This news, which appears in the February 6th issue of Science Magazine, is particularly propitious because the discovery was made during studies of some of the same species that Darwin used to develop his ideas. http://www.physorg.com/news153150994.html Biology Fri, 06 Feb 2009 13:57:52 EST news153150994 (PhysOrg.com) -- After a night on the prowl, locating a willing mate holds the promise of a private cuddle, a whole day of canoodling, and 14-15 opportunities to `make hay.` For the giant weta of New Zealand, a quirk in sexual selection means coupling owes more to speed than brawn. U of T Mississauga biology professor Darryl Gwynne and two of his former PhD students, Clint Kelly and Luc Bussière, travelled to the South Pacific to challenge the traditional predictor of evolutionary fitness that suggests strength is the most important factor for success in getting mates. http://www.physorg.com/news144429374.html Biology Tue, 28 Oct 2008 16:16:14 EST news144429374 Finding a mate can take considerable legwork as recently illustrated by the flightless and nocturnal Cook Strait giant weta Deinacrida rugosa. This cricket relative is found in New Zealand and is one of the world's heaviest insects with females weighing in at 20 g, averaging twice the size of males. http://www.physorg.com/news139838439.html Biology Fri, 05 Sep 2008 13:00:39 EST news139838439