Bipedalism is the one trait that is necessary for a new species to be admitted into the human evolutionary line.

Question

Quizplus · Accepted Answer

Bipedalism, or the ability to walk on two legs, is a defining characteristic of the human evolutionary line. Other traits, such as increased brain size and tool use, may also be important, but bipedalism is a necessary trait for a species to be considered part of the human lineage.

Bipedalism Is the One Trait That Is Necessary for a New