Human EVOLUTION Flashcards
1
Q
primates
A
mammal order
-about 250 species/4500 mammal species
2
Q
characteristics of primates
A
- stereoscopic color vision, boney orbits to protect the eye
- large brain to body size ration
- largely tree-dwelling and tropical
3
Q
arboreal
A
tree- dwelling
4
Q
adaptations to arboreal and social life
A
- digits with independent mobility and thumb.
- flat nails, sensitive fingers
- complex facial musculature
- half turn rotation at the elbow and free rotation at the shoulder
5
Q
classification of primates order to humans
A
haplorhines- anthropoidea- catarrhines- hominoids
6
Q
stepshirhines
A
wet nosed
lorises, galagos, lemurs
7
Q
haplorhines
A
dry nosed
us
tarsiiformes, platyrhines, cercopithecoids, hominoids
8
Q
tarsiiformes
A
tarsiers
9
Q
anthropoidea
A
simiiformes
us
platyrhines, cercopithecoids, hominoids
10
Q
platyrhines
A
new world monkeys, spider monkey
11
Q
catarrhines
A
us
- cercopithecoids, hominoids
- no prehensile tail, 2 pre-molars, narrow nasal septum
- distinguish red and green, locate fruit
12
Q
cercopithecoids
A
old world moneys
13
Q
hominoids
A
- apes (including humans)
- brachiation, more erect posture, arms and shoulders
- more flexible, spine stiffer, arms extend laterally
- larger pelvis, loss of tail
14
Q
prehensile tail
A
long tail to grasp tree branches with
15
Q
brachiation
A
arm swinging, primates swing from tree to tree
arm over arm
