(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 are sperm necessary ...
Biotechnology
Aug 9, 2012
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Males consistently change their mating behaviour depending on whether they have spent time with other males before mating, according to new findings by scientists at the University of East Anglia (UEA).
Plants & Animals
Mar 20, 2012
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Females can be too attractive to the opposite sex -- too attractive for their own good -- say biologists at UC Santa Barbara. They found that, among fruit flies, too much male attention directed toward attractive females ...
Plants & Animals
Dec 8, 2009
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The sperm of male fruit flies are coated with a chemical 'sex peptide' which inhibits the female's usual afternoon siesta and compels her into an intense period of foraging activity.
Plants & Animals
Sep 30, 2009
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In order to increase their chances of reproductive success, male flies of the species Drosophila montana try to copulate for much longer than the females would like. Researchers writing in the open access journal BMC Evolutionary ...
Plants & Animals
Jun 12, 2009
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Manipulation of male and/or female genitalia results in a suite of changes in female reproductive behavior in tsetse flies, carriers of African sleeping sickness.
Plants & Animals
May 14, 2009
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(PhysOrg.com) -- When it comes to wooing females, males of all species -- even fruit flies -- try to gain a competitive edge.
Plants & Animals
Apr 14, 2009
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For the first time, male flies of a serious agricultural pest, the medfly, have been bred to generate offspring that die whilst they are still embryos. Researchers writing in the open access journal BMC Biology describe the ...
Jan 27, 2009
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