Putting It All Together

Ardi had…

  • much smaller canines than those of a chimpanzee.
  • an ilium similar to a human’s and an ischium similar to a chimpanzee’s.
  • a divergent big toe similar to a chimpanzee’s and a rigid foot structure similar to a human’s.
An illustration of an incomplete skeleton of a human ancestor with the teeth, pelvis, and feet highlighted and labeled.
Key features of Ardi’s skeleton: teeth, pelvis, feet.