The paleontologist of the University of Flinders, in Australia, John Long reveals in a study published in 'Nature' how the reproductive sex with penetration evolved in our most primitive ancestors.
Sexual selection has been curious with this species of insects discovered in Brazilian caves, since they represent the first example of an animal whose individuals have the genitalia of the opposite sex, that is, the female is the one with a penis and the male with the vagina. .
Researchers from the Capital Normal University of China have found the oldest fossil of a copulation between insects, dating from the Middle Jurassic (160 million years ago). The lucky couple that managed to eternalize the moment of sexual ecstasy belongs to the species of cercopoideas and was found in the northeast of the Asian country.
47 million years ago, nine pairs of turtles of the extinct species 'Allaeochelys crassesculpta' were fossilized while copulating. German paleontologists have found his remains in the Messel sites, a disused quarry near Frankfurt (Germany) where there used to be a lake and which was declared a World Heritage Site by UNESCO more than 30 years ago.
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.
