2. What do teeth fossils tell us about the diet of ''P. boisei''?
From SJS Wiki
The teeth and jaw bone fossils of the P. boisei tell us that they evolved to be able to eat much tougher plant life. This allowed them to not worry as much about food to survive and let them have time to do other things. This trait is the defining characteristic of the Boisei.
Video Walking with Cavemen
http://humanorigins.si.edu/evidence/human-fossils/species/paranthropus-boisei
Sam Askew