Dolphin vagina

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Dolphin clitorises are incredibly similar to those of humans. In a recent studyscientist Dara Orbach, a research associate at Mount Holyoke College, and Patricia Brennan, an assistant professor of biology completed autopsies on 11 dolphins who had died of natural causes. They dissected their reproductive organs and created 3D tomography CT scans of their vaginas.

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I t is difficult to have sex in the ocean. Hydrodynamic drag on the penis, the trickiness of not getting seawater from not entering the uterus, and the basic difficulty of the mechanics of getting a penis into a vagina while swimming around make for a less than simple sexy situation. Mammals attempting a tumble in the watery jungle make it work within these environmental constraints, and the very fact that they are able to get it on has been a point of mysterious interest for scientists.

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You heard me correctly. Dolphin vaginas. Brennan is well-known among biologists for her work on sexual conflict in ducksand on the internet for her high-speed videos of duck erection.

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This site uses cookies to improve your experience and deliver personalised advertising. You can opt out at any time or find out more by reading our cookie policy. When Dara Orbach recieves a FedEx package at her lab in Galveston, Texas, often she opens it to find a frozen dolphin penis inside. Then she defrosts it, inflates it and sews the penis inside a vagina.

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During mating, male bottlenose dolphins will form small groups that will surround a female, isolating her. Regardless, female bottlenose dolphins have evolved a type of defense. Scientists only learned all this recently, though.

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Image: Patricia Brenna. It's hard to study how dolphins and other cetaceans have sex in the wild. Think about it: They live out in the ocean, often far from shore, where scientists can't easily camp out and observe them at the critical moment.

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By Lauren Tousignant. October 12, am Updated June 15, pm. Their findings were published in Proceedings of the Royal Society.

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But if you thought human sex was complicated, prepare to be mind-blown about how dolphins have sex, as it's really peculiar, but strangely mystifying. According to Dara Orbacha postdoctoral fellow at Dalhousie University in Nova Scotia and a research assistant at Mount Holyoke College in Massachusetts, "a fair bit is known about male reproductive organs. Apparently, marine mammals are known for having pretty twisty vaginas, which is likely so they can have sex under water without getting sea water in their uteri.

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Female bottleneck dolphins have evolved to be able to prevent certain males from reproducing with them. Researchers said male dolphins work in groups of two to four to seek out females, and females have little choice of who they mate with. Subtle movements during sex can prevent the male from fertilising the female, the scientists said — giving them the ability to control paternity.

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Being a scientist can be a strange job. Like on the days when your work involves inserting the artificially inflated penis of a dead dolphin into the recently thawed vagina of another dead dolphin, all inside a CT scanner. For new research presented yesterday April 23 at the annual meeting of the American Association of Anatomists in Chicago, scientists did just that in the pursuit of a better understanding of how male and female anatomy co-evolve. More recently, Orbach said, scientists have increasingly come to realize that the penis is only half the story.

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