Chapter 1.4, Problem 4AYLO

Summary Introduction

To discuss:

The ecological conditions thought to have selected for such key characteristics of Homo sapiens as opposable thumbs, shoulder mobility, prehensile hands, stereoscopic vision, color vision, and bipedal locomotion.

Introduction:

The ecological conditions have modified some of the human characteristics such as shoulder mobility, stereoscopic vision, bipedal locomotion, color vision, the opposable thumbs, and prehensile hands.