New study finds females play active, pivotal role in postcopulatory processes
Females play a larger role in determining paternity than previously thought, say biologists in Syracuse University's College of Arts and Sciences. Their findings are the subject of a new paper titled "Female ...
Jun 10, 2013
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Evolution shapes new rules for ant behavior
Scientists connect baboon personalities to social success, health benefits
Whether human or baboon, it helps to have friends. For both species, studies have shown that robust social networks lead to better health and longer lives. Now, a team of University of Pennsylvania researchers ...
Oct 01, 2012
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Evolution at warp speed: Hatcheries change salmon genetics after a single generation
Study finds monkey mothers are key to sons' reproductive success
If you are a male human, nothing puts a damper on romantic success like having your mother in tow. If you are a male northern muriqui monkey, however, mom's presence may be your best bet to find and successfully ...
Nov 07, 2011
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You snooze, you lose: Less sleep leads to more offspring in male pectoral sandpipers
During the breeding season, polygynous male pectoral sandpipers that sleep the least sire the most young. A team of researchers headed by Bart Kempenaers from the Max Planck Institute for Ornithology in Seewiesen ...
Aug 09, 2012
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Small But Mighty Female Lizards Control Genetic Destiny
(PhysOrg.com) -- "Be faithful in small things because it is in them that your strength lies." Mother Teresa's words echo throughout the world. They ring particularly true in the biological kingdom among brown ...
Apr 05, 2010
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Scientists discover human sperm gene is 600 million years old
Just as styles in sexy clothes or fashion change from year to year and culture to culture, "sexy" genes, or genes specific to sex, also change rapidly. But there is one sex-specific gene so vital, its function has remained ...
Jul 15, 2010
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Darwinian selection continues to influence human evolution
Research pinpoints region of plant genome where rising CO2 controls flowering time
Henry David Thoreau obsessively recorded the flowering time of plants around Concord, Mass., in the 1850s, while Japanese naturalists took keen note of the flowering time of cherry blossom trees for centuries before that. ...
Feb 12, 2013
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Small family size increases the wealth of descendants but reduces evolutionary success
Dead seals serve conservation boost
Scientists have used genetic testing on animals that died of natural causes for the first time, potentially boosting efforts to save endangered species.
Mar 05, 2013
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Cuckolded males sing louder
The song of male songbirds is multifaceted and has two main functions: to repel rivals and to attract mates. Females often pay attention to certain features within a song, such as the presence of special ...
Aug 23, 2012
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Why sticking around is sometimes the better choice for males
Researchers from Lund University and the University of Oxford have been able to provide one answer as to why males in many species still provide paternal care, even when their offspring may not belong to ...
Mar 26, 2013
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