A few days ago, expert of Chinese Academy of Sciences in the county that stroke peace area of scene of board factory valley sends disinter again fossil of skull of 6 spot hyena and fossil of a framework, so far, the spot hyena fossil that discovers inside area of scene of board factory valley already achieved nearly 40, first of its amount and integrality house Asia. According to participating in the ancient vertebrate expert of this second archaeology Dr. Liu Jinyi introduces, at present paleontology art group to " modern is genetic " hypothesis has two kinds, it is " walk out of Africa to say " , 2 be " various places evolution says " , former think modern traceable Africa, africa is walked out of to diffuse before 100 thousand years world each district, however at present fossil data (basically be East Asia) do not support this one hypothesis very, the fauna of East Asia and Africa lacks necessary connection and communication it seems that. "Of spot hyena fossil study a hopeful to migrate to bring new knowledge and clew with communication to explore the species between East Asia and Africa, it is argumentation ' modern is genetic ' hypothesis provides evidence. " Liu Jinyi says. As we have learned, stroked peaceful county 2006 board factory valley is opposite scene area discovers many animal skeleton and tooth in ancient hole mining, this caused the attention of ancient vertebrate of the Chinese Academy of Sciences and ancient mankind institute. Classics research confirms after, the fossil of disinter of hair of board factory valley is to be in China and even Asia-Europe mainland to had been eradicated, the spot hyena fossil that is put at African mainland only now. Experts conclude, the form of these spot hyena fossil is about into time 11 thousand years ago, and that time just in time is an animal big a extinct specific period. Experts think, area of scene of board factory valley is many of spot hyena fossil come up out of land, proved to be in Asia-Europe mainland to once had existed not only hyena of this kind of spot, and a very prosperous still species. Had these complete fossil, mean the information before finding 11 thousand years, can extract from which all heterogeneous such as environment, climate pass information at that time, and the mystery that hopeful opens an animal to be eradicated greatly is round.