Hassan Branch

Biology

2 November, 22:35

A fossil of a new primate species is discovered. Scientists hypothesize that the species traveled long distances without putting their hands down on the ground, and used tools. If this hypothesis is true, which trait would the fossil most likely have?

a. a foramen magnum at the back of the skull

b. a curve in the lumbar region of the spine

c. a femur angled outward

d. an opposable big toe