Study suggests that first sexual act in history was 'Side Saddle'

In new research, team evolutionists scientists say fish called placoderms were the first living beings to complete a sexual act. Carried out by Professor John Long of paleontology and the investigator Zerina Johanson, the study suggests that animals have been pioneers in the history of the evolution of sex.

According to the paper published in Nature, the placoderms was responsible for the start - in animal history - internal fertilization. Because they have genital L-shaped called "clasper", the males were able to pair with the females for the insertion of his sperm.

With only eight centimeters, the Microbrachius dicki species lived in what is now the mainland of Scotland. Discovered in 1888, the animal was also considered the first living being to possess primitive jaw; and is the precursor to the spinal field.

"Microbrachius means small arm, but scientists have tried for years to discover the real function of the fish this area," Long said. "We have solved this great mystery. They were there to mate, and the little arms came as tool "fit" in the genital region of the female, "the author.

Until then, it was thought that internal fertilization in vertebrates only have happened thousands of years later, in some species of sharks and stingrays. But the new study, researchers even claim: "We define the point of evolution that began internal fertilization in animals."

However, the team also states that the relationship "Side Saddle" was very strange. "The first act of the story seemed more like a dance than it really a sex scene."

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