Fast Lizards,

Slow Corals

The rapid evolution of lizards and the slow growth of

corals offer clues about how species are born.

◆ (^) Diagram the relationships among adaptive traits, reproductive fitness, and evolution
by natural selection.
◆ (^) Defend the utility of the biological species concept, and discuss its shortcomings.
◆ (^) Define speciation and the role of genetic divergence among populations in creating
new species.
◆ (^) Differentiate between allopatric and sympatric speciation.
◆ (^) Describe the two kinds of reproductive isolating mechanisms and explain their role in
speciation.
◆ (^) Define and give an example of coevolution.
After reading this chapter you should be able to: