| Term | Definition |
| s shaped spine | lucy |
| lucy | a. afarensis |
| aligned toes | lucy |
| arch in foot | lucy |
| undeveloped babies | homo erectus |
| controlled fire | homo erectus |
| longer legs | homo erectus |
| tall | homo erectus |
| larger brain | homo erectus |
| stone tools | homo habilis |
| larger brain | homo habilis |
| and lucy traits | homo habilis |
| scavenger, ate meat | homo habilis |
| "handyman" | homo habilis |
| very large brains | homo sapiens |
| language | homo sapiens |
| technology | homo sapiens |
| knees allowed her to stand upright | lucy |
| hips, pelvis, upright | lucy |
| primates | animals wit five flexible fingers |
| prosimians | night time hunters with large eyes |
| anthropoids | day active primates |
| hominids | humans closes fossil relatives |
| australopithicus | after hominid, before a. afarensis |
| a. afarensis | 3.5 mya, ,lucy |
| a. africanus | 2.5 mya |
| a. bosei | 1.8 mya |
| a. robustus | after a. bosei |
| homo | a split off of a. afarensis |
| h. habilis | 2 mya |
| h. erectus | 1.5 mya |
| h. sapiens | 100,000 ya |
| modern man | branched off to different races about 34,000 years ago |
| neaderthal | a branch or homo sapiens |