Considering the number of fossils attributed to the human lineage, an absence of such fossils for the great African ape lineages raises an obvious suspicion.
What happened to the femur? Did the original discoverers hold on to the bones to stonewall an analysis with a conclusion they didn’t like?
An anthropologist writes that the evolution of bipedal-walking primates was primarily caused by the shifting of select bones and muscles in the pelvis.
With permission from John West and Sarah Chaffee, here is the full text of their interview with staff writer Olga Khazan.
Compromises are driven by the limitations of a material world, but also by the vision that lies behind the design.