2.Perhaps 20 or more hominids (not all of them our ancestors) fill the gap between Lucy the australopithecine and modern humans.
在阿法南猿(露西)代人之间,人科动物的化石也许超过20种(他们不全是我们的祖先)。
3.Rosenberg, a paleoanthropologist at the University of Delaware, specializes in pelvic morphology and has studied hominid fossils from Europe, Israel, China and South Africa.