One of Australia's iconic lizard species is hiding a secret - female central bearded dragon embryos temporarily grow the lizard equivalent of a penis during development.
Evolution
Dec 5, 2017
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9
Female fish in the Bahamas have developed ways of showing males that "No means no."
Evolution
Aug 19, 2015
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85
Male Callosobruchus chinensis seed beetles have spines on their genitalia, which increase their fertilization success but injure a female's reproductive tract—especially a female of a related species called Callosobruchus ...
Evolution
May 19, 2015
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101
When it comes to genitalia, nature enjoys variety. Snakes and lizards have two. Birds and people have one. And while the former group's paired structures are located somewhat at the level of the limbs, ours, and the birds', ...
Evolution
Nov 5, 2014
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The road that connects also divides. This dichotomy – half-century-old roads connecting portions of Bahamian islands while fragmenting the tidal waters below – leads to rapid and interesting changes in the fish living ...
Evolution
Nov 5, 2014
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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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1
Researchers from Macquarie University and the University of New South Wales have discovered a strange mechanism whereby two species of traumatically inseminating plant bug are able to live together in Tahiti, as published ...
Plants & Animals
Sep 5, 2013
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(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, ...
New research from evolutionary biologists at the University of Toronto shows that the male guppy grows claws on its genitals to make it more difficult for unreceptive females to get away during mating.
Plants & Animals
Aug 2, 2013
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(Phys.org) —It's not always easy to tell if a fish is male or female: they look more or less the same. But there are exceptions, such as guppies and, as with humans, guppy genitalia varies in size across the species.
Plants & Animals
Jun 3, 2013
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