________ argues that modern bipedalism enhanced social bonds ...

[jayhills49]

________ argues that modern bipedalism enhanced social bonds among society members because of the complicated nature of human childbirth and the need for birth attendants.
 
  Fill in the blank(s) with correct word

Question 2

________ has argued that there is a connection between body temperature and bipedalism in that a biped is exposed to less of a heat load when the sun is directly overhead.
 
  Fill in the blank(s) with correct word

[yuyiding]

Answer to Question 1

Wenda Trevathan

Answer to Question 2

Peter Wheeler

[jayhills49]

Excellent

[frankwu0507]

Great answer, keep it coming