Apparently our ancestors used to think that objects having a similar shape or appearance were connected or had a shared origin. Looking at the beautiful composite image of Homo rudolfensis that was released this week, I was struck by a similarity of shape, as shown above.
Is it a coincidence that early hominids originated in the continent that looks the most like their skull? Almost certainly. Still, on the basis of this comparison, imagine what we might look like if we had evolved in North America.