The exchange of chemical signals between organisms is considered the oldest form of communication. Acting as messenger molecules, pheromones regulate social interactions between conspecifics, for example, the sexual attraction ...
Plants & Animals
Aug 29, 2014
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Female deer do not always choose the bigger and dominant males to mate with, scientists from Queen Mary, University of London and Hartpury College have found.
Plants & Animals
Apr 6, 2011
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Lemur girls behave more like the guys, thanks to a little testosterone, according to a new study.
Plants & Animals
May 12, 2015
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(PhysOrg.com) -- The brains of all vertebrates display gender-related differences. In songbirds, for example, the size of the brain areas that control their singing behaviour could be linked to the size of their song repertoires. ...
Plants & Animals
Jun 13, 2011
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The number of bears roaming the Pyrenees remained stable at a minimum of 22 last year, thanks largely to the continued virility of Pyros, the undisputed daddy of the colony.
Ecology
May 12, 2013
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Being at the very top of a social hierarchy may be more costly than previously thought, according to a new study of wild baboons led by a Princeton University ecologist.
Social Sciences
Jul 14, 2011
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Male orangutans plan their travel route up to one day in advance and communicate it to other members of their species. In order to attract females and repel male rivals, they call in the direction in which they are going ...
Plants & Animals
Sep 11, 2013
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Less-pretty female house sparrows tend to lower their aim when selecting a mate. Addressing the lack of studies on condition-dependency of female mate choice, researchers writing in the open access journal BMC Evolutionary ...
Evolution
Aug 26, 2010
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For a small African fish species, a colorful dominant male does better in life, winning access to food and females. New research by Stanford biologists suggests that this lucky outcome is regulated at a genetic level, by ...
Plants & Animals
Jan 6, 2016
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A study of chimpanzees has revealed that dominant animals with higher testosterone levels tend to suffer from an increased burden of parasites. Researchers writing in BioMed Central's open access journal BioPsychoSocial Medicine ...
Plants & Animals
Dec 9, 2010
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