Sex differences account for some of the most of the spectacular traits in nature: the wild colours of male guppies, the plumage of peacocks, tusks on walruses and antlers on moose. Sexual conflict – the battle between males and females over mating – is thought to be a particularly potent force in driving the evolution traits that differ in males and females.
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More news from McGill University
Family Dinners Reduce Effects of Cyberbullying in Adolescents
Sharing regular family meals with children may help protect them from the effects of cyberbullying, according to a study by McGill professor Frank Elgar, Institute for Health and Social Policy. Because family meal times represent social support and exchanges in the home that benefit adolescents' well-being, Elgar suggests that this family contact and communication can also reduce some of the distressing effects of cyberbullying.
Reducing Water Scarcity Possible by 2050
Water scarcity is not a problem just for the developing world. In California, legislators are currently proposing a $7.5 billion emergency water plan to their voters; and U.S. federal officials last year warned residents of Arizona and Nevada that they could face cuts in Colorado River water deliveries in 2016.
Walking Fish Reveal How Our Ancestors Evolved Onto Land
About 400 million years ago a group of fish began exploring land and evolved into tetrapods – today's amphibians, reptiles, birds, and mammals. But just how these ancient fish used their fishy bodies and fins in a terrestrial environment and what evolutionary processes were at play remain scientific mysteries.
Black Carbon - a Major Climate Pollutant - Also Linked to Cardiovascular Health
Black carbon pollutants from wood smoke are known to trap heat near the earth's surface and warm the climate. A new study led by McGill Professor Jill Baumgartner suggests that black carbon may also increase women's risk of cardiovascular disease.
Global Warming 'Pause' Since 1998 Reflects Natural Fluctuation
Statistical analysis of average global temperatures between 1998 and 2013 shows that the slowdown in global warming during this period is consistent with natural variations in temperature, according to research by McGill University physics professor Shaun Lovejoy.
New Fish Species Offers Literal Take on 'Hooking Up'
By North Carolina State University
|Battle of the Sexes Offers Evolutionary Insights|
By University of Cincinnati
In a paper published May 3, in the journal Evolution, University of Cincinnati graduate student Karl Grieshop and Michal Polak, associate professor of biological sciences at UC, examine the
|Does It Pay to Be a Lover Or a Fighter? It Depends on How You Woo Females|
By University of Manchester
As mating season approaches, male animals are faced with a question that can make or break their chances at reproducing: does it pay to be a lover or a
Fish Genital Shape Linked to Predation
By North Carolina State University
|The Colour of Love: Zebrafish Perform Colorful Courtship Displays|
By University of Veterinary Medicine -- Vienna
Elaborate secondary sexual displays are often overlooked because many species attract mates through sensory modalities imperceptible to humans, including ultraviolet light, ultrasound, electrical signals, or pheromones. Also, sexual coloration
Promiscuous Squid Fatigued After Mating
By University of Melbourne
In Sex-reversed Cave Insects, Females Have the Penises
By Cell Press
|Locked Down, RNA Editing Yields Odd Fly Behavior|
By Brown University
PROVIDENCE, R.I. Brown University — Because a function of RNA is to be translated as the genetic instructions for the protein-making machinery of cells, RNA editing is the body's
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