11.   Over evolutionary time, people who have this gene have developed a better immune response to malaria than people without it, enhancing their chance of survival.

12.   Over evolutionary time, both currents would shape new behaviors and social organizations.

13.   Over evolutionary time, these receptors congregated deep in the nasal cavity, in a region called the olfactory epithelium.

14.   Scientists have long known that insect species can hone their skills over evolutionary time to become expert at attacking a single species of plants.

15.   Such alleles could persist through evolutionary time if they help fight off infectious diseases in early life and do not trigger autoimmune reactions until middle or late life.

16.   Terror birds moved toward a dinosaur body, but not by going backward in evolutionary time.

17.   Until quite recently on the evolutionary time scale, those processes bound humans to the confined and perilous existence of hunter-gatherers.

18.   Over evolutionary time, the male-determining Y chromosome became simpler and shared fewer and fewer genes of the more complex X chromosome.

19.   So through evolutionary time, women would become especially sensitive to that risk, Buss argues.