The humerofemoral ratio, or length of humerus divided by length of femur, is 84.6 for Lucy, compared to 71.8 for humans, and 97.8 and 101.6 for the two species of chimpanzee (all these figures have a standard deviation of between 2.0 and 3.0). In other words, humans have much shorter arms compared to their legs than chimpanzees do, and Lucy falls roughly in the middle. (Korey 1990)
This page is part of the Fossil Hominids FAQ at the talk.origins Archive.
Home Page |
Illustrations | What's New | Feedback | Search | Links | Fiction
Copyright © Jim Foley || Email me