Question

Fill in the blanks for the trends in hominid evolution. A. Height and size______ B. Brain size_______ C. Teeth became ______ due to the use of tools and cooking. D The foramen magnum moved more toward the _____ of the skull. E Toes moved______ together and lost their prehensile nature.

Answer 1

 1. Bipedal gait 

2. free to use hands for tools or carring capacity 

3. increase in cranial capacity 

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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.