News tagged with male genitalia
Researchers reveal secrets of duck sex: It's all screwed up
Female ducks have evolved an intriguing way to avoid becoming impregnated by undesirable but aggressive males endowed with large corkscrew-shaped penises: vaginas with clockwise spirals that thwart oppositely ...
Dec 23, 2009 |
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Velvet spiders emerge from underground in new cybertaxonomic monograph
Velvet spiders include some of the most beautiful arachnids in Europe and some of the world's most cooperative species. Social species can be very abundant in parts of tropical Africa and Asia with conspicuous co ...
May 23, 2012 |
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Discerning males remain faithful
Discerning males remain faithful ... if you are a spider. Sex for male orb web spiders (Argiope bruennichi) is a two shot affair since the act of mating destroys their genitalia. If they survive being eaten ...
Apr 24, 2012 |
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Duda, where'd my spines go?
UC researcher finds that when it comes to hooking up with the opposite sex, genital complexities do matter.
Jan 07, 2010 |
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