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Flashcards in Larsen 6 Deck (30)
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Arboreal adaptation and

A suite of physical traits that enable an organism to live in trees.

1

Bilophodont

Refers to the lower molars, in old world monkeys that have two ridges

2

Brachiators

Organism's that move by Brachiation, or arm-swinging.

3

Canine-premolar honing complex

The dental form in which the upper canines are sharpened against the lower third premolars when the jaws are opened and closed.

4

Dental formula

The numerical description of a species' teeth, listing the number, in one quadrant of the jaws, of incisors, canines, premolars, and molars.

5

Derived characteristics

Characteristics present in only one or a few species of a group.

6

Diastema

A space between two teeth

7

Dietary plasticity

A diets flexibility in adapting to a given environment

8

Diurnal

Refers to those organism's that normally are awake and active during daylight hours.

9

Haplorhines

The cladistic classification for the primate group that consists of anthropoids and tarsiers

10

Hominin

Humans and human ancestors in a more recent evolutionary taxonomy; based on genetics.

11

Loph

An enamel ridge connecting cusps on a tooths surface

12

Nocturnal

Refers to those organism's that are awake and active during the night

13

Olfactory bulb

The portion of the anterior brain that detects odors

14

Opposable

Refers to primates' thumb, in that it can touch each of the four fingertips, enabling a grasping ability

15

Parental investment

The time and energy parents expend for their offsprings benefit.

16

Phylogeny

The evolutionary relationships of a group of organisms.

17

Power grip

A fist-like grip on which fingers and thumbs wrap around an object in opposite directions

18

Preadaptation

An organism's use of an anatomical feature in a way unrelated to the feature's original function

19

Precision grip

A precise grip in which the tips of the fingers and thumbs come together, enabling fine manipulation

20

Prehensile tail

A tail that acts as a kind of hand for support in trees, common in new world monkeys.

21

Primitive characteristics

Characteristics present in multiple species of a group

22

Rhinarium

The naked surface around the nostrils, typically wet in mammals.

23

Sectorial (premolar)

Refers to a premolar adapted for cutting.

24

Strepsirhines

The cladistic classification for the primate group that consists of lorises and lemurs

25

Tooth comb

Anterior teeth (incisors and canines) that have been tilted forward, creating a scraper.

26

Y-5

Hominoids' pattern of lower molar cups

27

What's the difference between communication, speech, and language

Language and speech help us communicate,

28

What is causal thought?

Why do we do things?

29

Is it ethical to impose human culture on primates?

A