Earth: An Introduction to Physical Geology (12th Edition)

Published by Pearson
ISBN 10: 0134074254
ISBN 13: 978-0-13407-425-2

Chapter 22 - Section 22.9 - Cenozoic Era: Age of Mammals - Concept Checks - Page 697: 4

Answer

Two characteristics that best separate humans from other mammals are bipedalism and complex cognitive abilities. Bipedalism refers to the ability to walk on two legs, a trait unique to humans among the primates. This adaptation freed the hands for carrying objects and allowed for more efficient long-distance travel. Bipedalism played a crucial role in the evolution of our early ancestors and is a defining feature of the hominin lineage.

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