Introduction to Primates and Primate Morphology

The three major reasons for studying primates are biomedical research in medicine, clues about human origins, and understanding patterns of __________.

behavior

Rather than possessing sharp claws, primates have sensitive fingertip pads and flattened __________.

nails

Primates possess forward-facing eyes that provide broad binocular overlap and __________ depth perception.

stereoscopic

A group of organisms classified by similarity in appearance or lifestyle—such as grouping apes together while excluding humans—is called a __________.

grade

An evolutionary grouping that includes a common ancestor and all of its descendants based on shared derived traits is known as a __________.