Home  |  Top News  |  Most Popular  |  Video  |  Multimedia  |  News Feeds  |  Feedback
  Medicine  |  Nature & Earth  |  Biology  |  Technology & Engineering  |  Space & Planetary  |  Psychology  |  Physics & Chemistry  |  Economics  |  Archaeology
Top > Biology >
Biologists Turn Back the Clock to Understand Evolution of Sex Differences

Published: May 3, 2012.
By McGill University
http://www.mcgill.ca

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.


Full Story »


More news from McGill University


psychology
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.
nature
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.
biology
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.
nature
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.
nature
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.
Related »

Females 
9/27/12 

New Fish Species Offers Literal Take on 'Hooking Up'
By North Carolina State University
Male 
5/3/12 
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 …
Traits 
1/23/14 
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 …
Predators 
10/11/13 

Fish Genital Shape Linked to Predation
By North Carolina State University
Colour 
11/30/12 
★★ 
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 …
Dumpling 
7/18/12 

Promiscuous Squid Fatigued After Mating
By University of Melbourne
Neotrogla 
4/17/14 

In Sex-reversed Cave Insects, Females Have the Penises
By Cell Press
Fly 
4/24/12 
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 …
More » 
 
© Newsline Group  |  About  |  Privacy Policy  |  Feedback  |  Mobile  |  Japanese Edition
All contents are copyright of their owners except U.S. Government works. U.S. Government works are assumed to be in the public domain unless otherwise noted. Everything else copyright ScienceNewsline.