News tagged with sexual
Change in developmental timing was crucial in the evolutionary shift from dinosaurs to birds: study
At first glance, it's hard to see how a common house sparrow and a Tyrannosaurus Rex might have anything in common. After all, one is a bird that weighs less than an ounce, and the other is a dinosaur that ...
Other Sciences / Archaeology & Fossils
May 27, 2012 |
4.9 / 5 (14) |
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Female bonobos use homosexual sex to increase social status
(PhysOrg.com) -- Female bonobos (Pan paniscus) often form strong bonds with other females, and these bonds affect their position in the social hierarchy. Scientists from St Andrews University in the UK loo ...
Mar 02, 2012 |
3.7 / 5 (11) |
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Female bugs overcome cost of traumatic sex
(Phys.org) -- The study of “sexual conflict” between males and females helps us to understand why sexual reproduction persists given that it can be costly, especially to females. One aspect of ...
May 09, 2012 |
2.5 / 5 (2) |
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Early spring means more bat girls
There must be something in the warm breeze. A study on bats by a University of Calgary researcher suggests that bats produce twice as many female babies as male ones in years when spring comes early.
May 05, 2012 |
5 / 5 (1) |
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Biologists turn back the clock to understand evolution of sex differences
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 ...
May 03, 2012 |
3.5 / 5 (4) |
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Battle of the sexes offers evolutionary insights
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 role of genita ...
May 03, 2012 |
not rated yet |
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Scientists make stunning inner space observations
Scientists using high-powered microscopes have made a stunning observation of the architecture within a cell – and identified for the first time how the architecture changes during the formation of gametes, ...
May 01, 2012 |
4.7 / 5 (7) |
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Darwinian selection continues to influence human evolution
New evidence proves humans are continuing to evolve and that significant natural and sexual selection is still taking place in our species in the modern world.
Apr 30, 2012 |
4.3 / 5 (22) |
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Sexual reproduction brings long-term benefits, study shows
Courtship rituals can be all-consuming, demanding time and effort – but now scientists have discovered why it might be worth it.
Apr 09, 2012 |
3.3 / 5 (6) |
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Scientists observe reproductive seasonality in male giant pandas
A three-year study of giant pandas published today in Biology of Reproduction's Papers-in-Press reveals that reproductive seasonality exists not only in female pandas, but in male pandas as well.
Apr 04, 2012 |
not rated yet |
1
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Review: 5 ways to control your privacy on Google
Like it or not, your relationship with Google is becoming a lot more intimate. The company recently expanded its ability to combine data from its various services to create a highly detailed profile on you.
Mar 15, 2012 |
3.6 / 5 (9) |
4
Coral embryos clone themselves
Forming a unique part of the animal kingdom, corals have built the only living entity visible from space; the Great Barrier Reef. Scientists from the Australian Institute of Marine Science (AIMS) have recently ...
Mar 01, 2012 |
5 / 5 (2) |
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Malaria parasite goes bananas before sex: new study
(PhysOrg.com) -- New research from the University of Melbourne shows how the malaria parasite (Plasmodium falciparum) changes into a banana shape before sexual reproduction, a finding that could provide target ...
Feb 14, 2012 |
5 / 5 (2) |
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Sexual healing? Not likely
(PhysOrg.com) -- A new study shows the production of sperm is more biologically taxing than previously thought, and expending energy on it has significant health implications.
Jan 30, 2012 |
4.6 / 5 (11) |
8
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Monogamy reduces major social problems of polygamist cultures: study
In cultures that permit men to take multiple wives, the intra-sexual competition that occurs causes greater levels of crime, violence, poverty and gender inequality than in societies that institutionalize and practice monogamous ...
Other Sciences / Social Sciences
Jan 23, 2012 |
4.3 / 5 (12) |
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