GMAT
Modern-day snakes are believed to have evolved from four-legged lizards, but scientists are divided over whether that phase of evolution occurred on land or in the sea; the recent discovery of fossils of a land-dwelling snake with two legs provides new information for the ongoing debate.
Modern-day snakes are believed to evolve from four-legged lizards, but scientists are divided over whether that phase of evolution occurred on land or in the sea; the recent discovery of fossils of a land-dwelling snake with two legs provides new information for the ongoing debate.
题目基本信息