| Term | Definition |
|
Paleoanthropologists |
scientists who study fossil evidence of human evolution |
|
Hominids |
a group that comprimises humans and their immediate ancestors |
|
Pelvis |
hipbone; can indicate whether an organism walked upright |
|
Primate |
a member of the order Primates, the mammalian order that includes humans |
|
Anthropoid Primate |
one of a subgroup of primates that includes monkeys and apes |
|
Prosimian Primate |
a suborder of modern primates that includes lemurs, lorises, and tarsiers |
|
Prehensile |
grasping, as in a primate's hand, foot, tail |
|
Opposable Thumb |
a thumb that can be positioned opposite the other fingers |
|
Dental Formula |
number and arrangement of teeth |
|
Great Ape |
a gibbon, orangutan, gorilla, or chimpanzee |
|
Bipedalism |
the ability to walk primarilyon two legs |
|
Quadrupedal |
organisms that walk on four limbs |
|
Australopithecines |
early hominid from the genus Australopithecus |
|
Lucy |
unofficial female Australopithecus fossil |
|
Multiregional Hypothesis |
suggests regional differences in phenotype have been developing for well over a million years |
|
Recent-African-Origin Hypothesis |
states that Homo sapiens originated in Africa only about 100,000 to 200,000 years ago and then, like Homo erectus before them, left Africa |