| A | B |
|---|
| primate characteristics | grasping hands, color vision, binocular vision |
| anthropoid characteristics | opposable thumb, rotating shoulder, paritially rotating elbow |
| hominid characteristics | bipedalism, larger brain |
| bipedal | walking primarily on two legs |
| quadrapedal | walking on four limbs |
| Australopithicines | earliest bipedal hominids |
| hominids | bipedal primates |
| age of Lucy | 3.2 my |
| Homo habilis | earliest Homo "handy man" about 2 mya |
| Homo erectus | first to leave Africa about 1 mya |
| Neanderthals | evolved from H. erectus about 200,000 ya in Europe and Asia |
| Homo sapiens | evloved from H. erectus about 200,000 ya in Africa |
| great ape | gorilla, chimpanzee, orangutan |
| recent African origin hypothesis | H. sapiens migrated from Africa about 100,000 ya |
| multiregional hypothesis | H. erectus migrated from Africa about 1 mya and evolved into H. sapiens in several regions |
| Laetoli | location of 3.5 my old fossil footprints |
| Hadar | where Lucy was found |
| prosimians | primative primates that are nocturnal and live in trees |
