Stephen Magsig: Sea slugs stab to copulate

Friday, December 13, 2013

Sea slugs stab to copulate

Mating of the sea slug starts slowly. The two lovers intertwine their bodies in a long embrace .
But in the case of recently discovered copy and temporarily named Siphopteron Species 1 seconds after what seems like a tender seduction both copies stab each other in the head with a stiletto -like appendage on the penis, as you can see in this video .

Thus, injected chemicals into the body of his partner in what is considered " exceptional traumatic mating behavior " of the sea slug .
By injecting these products directly into the brain , each of these sea slugs , scientists say , is trying to change the behavior of your partner in your own benefit.
These animals , between 2 and 4 millimeters in length - are among the many that inject chemicals into their partners during copulation . But it seems that this new species always does in the head.
As a result, individuals are locked side by side , in a still hug that lasts about 40 minutes.

Drugging the couple
Although all slugs are hermaphrodites , having male and female sex organs -each partner rivals by playing the role of male during mating.
Thus, they may impregnate many other slug .
Rolanda Lange and colleagues at the University of Tübingen in Germany , observed mating in the laboratory and published their research in the journal Proceedings of the Royal Society B.
The British science magazine New Scientist quoted Joris Koene scientist at the Free University of Amsterdam , specializing in hermaphrodite reproduction, who said that the injection makes the other sea slug reluctant to continue fertilizing . Thus, this example assumes the "role" of female .

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