This paper describes new fossils of Equus huanghoensis from an Early Pleistocene bed in Nihewan, Hebei Province, which c......

记述的庆阳马新种(Ｅｑｕｕｓ ｑｉｎｇｙａｎｇｅｎｓｉｓ ｓｐ．ｎｏｖ．)是一种中等大小的真马，生活于早更新世泥河湾期。庆阳马的材料相当丰富，包括大量头骨、颊齿和肢骨化石，标本采自......

Tetanus is an acute non-contagious and infectious disease caused by Clostridium tetani exotoxins that affect many animal......