| A | B |
|---|
| hominid | the type of hominoid that walks upright all the time |
| australopithicus | the genus that Lucy belonged to |
| africa | where modern man evolved |
| homo | the genus that we belong to |
| primates | the order we belong to |
| prehensile | the description of primate hands |
| prosimians | primates that are not anthropoids |
| opposable | the description of the anthropoid thumb |
| bipedalism | the characteristic that separates Homo from all other anthropoids |
| large brain | the human characteristic that evolved after man started walking upright |
| Homo habilis | the first stone tool maker |
| Homo erectus | the first user of fire |
| Homo neanderthalensis | Homos species that co-existed with Homo sapiens in Europe and Asia, but went extinct about 30,000 ya. |
| pelvis | bowl shaped structure that supports organs of bipedal organisms |
| locking knee | characteristic of Lucy that shows that she was bipedal |
| binocular | type of vision that allows primates to have depth perception |
| hominoid | great apes, Lucy and humans belong to this group |
| laetoli | where australopiticus footprints were found |
| hadar | where Lucy's bones were found |
| Homo sapiens | the schientific name for modern humans |
