Ardi’s Ilium

Ardi’s ilium is horizontally broad and vertically short, similar to the human ilium. It also curves around the sides of the body to stabilize the trunk.

Can you see the differences from these side views?

A side view of a chimpanzee pelvis with a long bracket marking the length of the ilium.
Chimpanzee ilium
A side view of an Ardipithecus pelvis with a bracket marking the length of the ilium.
Ardipithecus ilium
A side view of a human pelvis with a bracket marking the length of the ilium.
Human ilium