Saturday, April 19, 2014

Female phallus

Four species of winged cave-dwelling insects living in Brazil's Peruaçu River Valley have just been discovered to have a singular distinction. They are the only animals in which the females possess a penis and the males have vaginas.* The mating process – which lasts 40 to 70 hours – consists of the female mounting the male, inflating her spiny phallus (IMAGE ABOVE), and inserting it into the male to gather large quantities of sperm that she uses to fertilize her eggs. Says Japanese entomologist Yoshizawa Kazunori of Hokkaido University, co-author of the newly-published study, "The female penis is a completely novel structure."

* For some even weirder news, click on this link.

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