A. Darwin had very few fossils to support his theory of evolution by means of natural selection when he published On the Origin of Species. Why are fossils considered essential for the study of biological evolution?
B. What can be learned by studying fossils (think in terms of ecology, what role does the environment play in the evolution of species)?
C. Discuss the theories of early primate evolution. Have any new discoveries supported one theory over another? Does any theory best explain the diversification of primates?