My Favorite Fossil: Ardipithecus Ramidus; The First Walker?

(system) #1

This is a companion discussion topic for the original entry at

(Cindy) #2

In another thread we are talking about how speech separated us from the other primates but actually, bipedalism was at least as important. It gave us more things to see and thus more need to communicate!

(Phil) #3

And a reason for back pain.