Humankind is still evolving, but recent genetic changes are often less interesting to physical anthropologists than the striking evolutionary changes that differentiated our hominid ancestors from apes. What is a possible reason for this?
a) physical anthropologists do not study modern humans; they study only ancient hominids
b) human evolution occurs only in Africa and thus cannot help us to understand contemporary people
c) our species now completely depends on culture for its survival
d) the origin of bipedal walking in our hominid ancestors is more important than variation in genes for disease-susceptibility among modern people