The Black Widow spider gets its name from the popular belief that female spiders eat their male suitors after mating. However, a new study has shown that the tendency to consume a potential mate is also true of some types ...
May 06, 2013
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(PhysOrg.com) -- Older dogs and male dogs are better hunting companions than younger dogs and female dogs says the author of a new study on the hunting ability and nutritional status of domestic dogs in lowland ...
Jan 18, 2012
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Male Cardiocondyla obscurior ants are diphenic (either winged or wingless). New research published in BioMed Central's open access journal BMC Ecology demonstrates that the dominant wingless (ergatoid) ma ...
Jun 14, 2012
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In choosing a mate both males and females rely on visual cues to determine which potential partner will supply the best genes, best nesting site, best territory, and best parenting skills. New research published ...
Jun 25, 2012
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(Phys.org) -- The propagation of every animal on the planet is the result of sexual activity between males and females of a given species. But how did things get this way? Why two sexes instead of one? Why ...
Aug 09, 2012
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Having elder siblings decreases mortality risk in childhood, but same-sex elder siblings are associated with lower marriage rates and fewer children for their younger siblings in adulthood, according to the ...
Nov 22, 2012
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(Phys.org)—In a paper published in the Nov. 21 issue of Cell, a team led by Mauro Calabrese, a postdoctoral fellow at the University of North Carolina in the lab of Terry Magnuson, chair of the department of genetics and me ...
Nov 27, 2012
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It is well known that many mammals are able to adjust the ratio of male and female young depending on the surrounding conditions at the time of conception. A recent study in the group of Christine Aurich ...
Dec 18, 2012
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(Phys.org) —Observations of hunting and meat eating in our closest living relatives, chimpanzees, suggest that regular inclusion of meat in the diet is not a characteristic unique to Homo. Wild chimpanzees ...
Mar 26, 2013
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The pharmaceutical industry's push to find a female version of Viagra has been full of letdowns.
Apr 27, 2009
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Great tits who have as many sons as daughters acquire more grandchildren than great tits with an uneven family composition. That is because their children are reproductively more successful concludes NWO researcher Reinder ...
Dec 19, 2011
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A new study from Educational and Psychological Measurement (published by SAGE) found that when it comes to homophobic bullying, there could be a gender gap. While male victims are more likely to be bullied by male homoph ...
Apr 26, 2012
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Coryphodontids, are a group of extinct large herbivorous mammals widespread in Eurasia and North America from late Paleocene to middle Eocene, placed in the archaic, extinct order Pantodonta, and are among ...
Aug 09, 2012
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(Phys.org) -- In order to pass on their genes, southern dumpling squid engage in up to three hours of mating with each partner, but University of Melbourne researchers have found that this results in a reduced ...
Jul 18, 2012
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