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Latest Sexual selection Stories

It's Not All Sexual Selection
2014-03-05 14:54:45

Since the days of Darwin, scientists have considered bird song to be an exclusively male trait, resulting from sexual selection. Now a team of researchers say that's not the whole story.

Seal Evolution Discovery And Sexual Dimorphism
2014-02-20 08:20:42

Pinning down the answer to a widely-asked question is one of the most exciting things a researcher can do. For Thomas Cullen, who completed the research as part of his Master's degree at Carleton University, this experience came early in his career.

Infidelity Linked To Large Testicles
2014-01-29 10:15:23

The correlations between evolution and sperm, infidelity and sex will be a key element of Sexus, which will open in mid-February – and stay open for the entire year – to celebrate the museum’s bicentennial.

Flies That Live With Their Brothers Are Gentler Lovers
2014-01-23 13:39:47

Flies living with their brothers cause less harm to females during courting than those living with unrelated flies, say Oxford University scientists.

Detailing The Evolution Of Plumage Patterns In Male, Female Birds
2013-12-19 14:06:31

Waterfowl such as ducks, geese and swans belong to the order Anseriformes. Game birds such as pheasants, partridges, hens and turkeys are known as the order Galliformes. The birds belonging to both of these orders are recognized not only for their meat, but also for their elegant display of their plumage.

Study Shows Impact Of Polyandry On Reproductive Success In Fire Salamanders
2013-12-02 16:11:27

Researchers at Bielefeld University and the Technische Universität Braunschweig are the first to confirm the benefit of multiple paternities for a vertebrate under completely natural conditions.

Male Lizards Steer Clear Of Females With Similar Throat Bands
2013-11-07 06:11:53

A team of researchers from Penn State University recently examined the relationship between body-color patterning and mating behavior in the fence lizard, Sceloporus undulatus, which is found ranging across the Eastern US.

Better Sex In Return For Nuptial Gifts
2013-10-24 13:41:15

A male spider that gives its selected female a nuptial gift is allowed to mate with her for a longer period of time and provide more sperm than a male that fails to come with a gift.

Role Of Sperm Competition In Formation Of New Species Confirmed By Biologists
2013-09-27 08:09:16

Syracuse University 'Current Biology' article marks culmination of 6 years of research Female promiscuity—something that occurs in a majority of species, including humans—results in the ejaculates from two or more males overlapping within her reproductive tract. When this happens, sperm compete for fertilization of the female's eggs. In addition, the female has the opportunity to bias fertilization of her eggs in favor of one male's sperm over others. These processes,...

2013-09-19 13:14:21

It is common for parents to influence mate choice — from arranged marriages to more subtle forms of persuasion — but they often disagree with their children about what makes a suitable partner.


Word of the Day
ethnarch
  • The governor of a province or people.
The word 'ethnarch' comes from a Greek word meaning 'ruler of a tribe or nation'.
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