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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(Phys.org) —Animal genitalia are structurally diverse organs that can evolve rapidly under powerful selective forces exerted by the peculiarities of sexual reproduction. An overarching review of the existing evolutionary ...
Evolution
May 7, 2014
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A team of researchers from Uppsala University, the University of Cincinnati and the University of Toronto has found that there are benefits for female seed beetles mating with males with extra-long spiny genitalia. In their ...
(Phys.org) —Biology researchers Nikolai Tatarnic and Gerasimos Cassis of the University of New South Wales and Macquarie University in Sydney, report in a paper they've had published in the journal The American Naturalist, ...
After more than 35 years of surveillance, Michigan State University researchers are exposing some of the secret workings of mobs. To be clear, these mobs are made up of spotted hyenas.
Plants & Animals
Dec 5, 2023
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UC researcher finds that when it comes to hooking up with the opposite sex, genital complexities do matter.
Plants & Animals
Jan 7, 2010
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In the order Diptera, more-primitive species such as mosquitos generally do their deed in the end-to-end position. Higher (more evolved) species such as flies tend toward the male mounting the female from behind (male-above ...
Plants & Animals
Feb 27, 2019
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202
When a female mates with several males, these will compete over the fertilization her eggs. This is an important evolutionary force that has led to the evolution of a diversity of male sexual organ morphologies. This is revealed ...
Plants & Animals
Oct 25, 2012
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In most animals, body size shrinks when food becomes scarce, but some parts are protected from shrinkage. In humans without enough food, the body becomes small, but the size of the head stays the same, hinting at biological ...
Plants & Animals
May 16, 2019
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81
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 colonies dotting ...
Plants & Animals
May 23, 2012
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