Chapter 6 - An Overview of the Primates Flashcards Preview

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1

primates

Members of the mammalian order Primates (pronounced “pry-may ́-tees”), which includes lemurs, lorises, tarsiers, monkeys, apes, and humans.

2

diurnal

Active during the day.

3

stereoscopic vision

The condition whereby visual images are, to varying degrees, superimposed. This provides for depth perception, or viewing the external environment in three dimensions. Stereoscopic vision is partly a function of structures in the brain.

4

omnivorous

Having a diet consisting of many kinds of food including plants, meat, and insects.

5

neocortex

The more recently evolved portion of the brain that is involved in higher mental functions and composed of areas that integrate incoming sensory information.

6

dental formula

Numerical device that indicates the number of each type of tooth in each side of the upper and lower jaws.

7

brachiation

Arm swinging, a form of locomotion used by some primates. Brachiation involves hanging from a branch and moving by alternately swinging from one arm to the other.

8

quadrupedal

Using all four limbs to support the body during locomotion; the basic mammalian (and primate) form of locomotion.

9

rhinarium

(rine-air ́-ee-um)(Plural: rhinaria) The moist, hairless pad at the end of the nose seen in most mammalian species. The rhinarium enhances an animal’s ability to smell.

10

ischial callosity

Patches of tough, hard skin on the buttocks of Old World monkeys and chimpanzees.