搜索结果: 1-1 共查到“理学 Grad Student”相关记录1条 . 查询时间(0.049 秒)
Fossil Dog Represents a New Species,Penn Paleontology Grad Student Finds
Fossil Dog Penn Paleontology Grad Student
2016/5/19
A doctoral student at the University of Pennsylvania has identified a new species of fossil dog. The specimen, found in Maryland, would have roamed the coast of eastern North America approximately 12 ...