D. have been observed hunting and killing gorillas. E. exhibit less sexual dimorphism than gibbons. B. evolution tends to occur as the relatively slow, persistent accumulation of small genetic changes. C. species do not actually evolve in the way that Darwin believed, but are created supernaturally and then replace competing species very quickly. D. most species are in adaptive equilibrium with their environment, which means that any mutations will be disastrous for them.
E. evolution occurs by selection of the strongest and most intelligent individuals.
B. the reconciliation of evolution with the Book of Genesis. C. the synthesis of evolutionary theory with Mendelian genetics. D. the demonstration that most living things have fossil ancestors. E. the use of breeding experiments to demonstrate artificial selection. D. Olduvai Gorge.