Fill in the blanks for the trends in hominid evolution. a. height and b. brain c. teeth became due to the use of tools and cooking. d the foramen magnum moved more toward the of the skull. e toes together and lost their prehensile nature.

 1. Bipedal gait 

2. free to use hands for tools or carring capacity 

3. increase in cranial capacity 

... 

Evidence points to bipedalism evolving before the expansion in human brain size. The different hypotheses are not necessarily mutually exclusive and a number of selective forces may have acted together to lead to human bipedalism.