The scientists were crossing the species whose cells contained tarpan's genes. As a result of the experiment, they created the creature, whose appearance was exactly the same as that of their ancestor. The tarpans were released: several herds of them are grassing in Germany and Poland. Interestingly enough, the appearance of those animals has not changed much in several generations. The "resurrection" process was a success, which means that the animals hold the majority of the genes of the wild ancestor of the horse indeed. It is impossible to determine that, because the genetic bank of the tarpan has not been preserved.