Britanski naucnici tvrde da su stvorili "vjestacku spermu", objavio je Sky News.
Scientists in Newcastle have scored a world first by creating what they claim is artificial human sperm.
They "prompted" embryonic stem cells to divide their chromosomes, then grow tails and become sperm cells.
It is hoped the technique could eventually allow infertile men to become fathers.
Although it would be illegal in the UK to use the artificial sperm to produce a baby, the scientists behind the technique say they want the law changed to help infertile men.
Professor Karim Nayernia, from the North East England Stem Cell Institute, said his team has no intention of using their breakthrough to produce humans in the laboratory.
But he wants legislation to be put in place "sooner rather than later" to allow the technique to be licenced as a treatment for infertile men.
"This work is a way of investigating why some people are infertile and the reasons behind it," he said.
"If we have a better understanding of what's going on it could lead to new ways of treating infertility."
They have named the cells they created "In Vitro Derived" or IVD sperm.
Other eminent scientists have urged caution saying that the breakthrough has not demonstrated that the artificial sperm cells are capable of producing a viable embryo.
Ne sporim mogucnost da ovo otkrice pomogne sterilnim muskarcima, ali -- braco moja, izgleda da od danas nase usluge vise nisu potrebne.
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.....zar muškarac samo služi radi sperme,radi čune 
....a ja mislila da on ima i neke druge vrijednosti 
:
) pa treba paziti da se niko ne izlane. Jelde, zelenashice? 
