You can breed characteristics out of an animal such as a dog but the dog is still a dog. The same goes for fruit flies.
Human pregnancies, on average, last 38-40 weeks—approximately nine months. This makes potential genetic change in the human race relatively slow. Not so with Drosophila melanogaster: the fruit fly. If you were to make a short list of creatures that could serve as examples to prove neo-Darwinian evolution to be a legitimate theory, the common fruit fly would probably be on the list.1 Female flies can lay about 500 eggs in their lifetime, and each fly can grow from egg to adult in about a week2—translating to about 50 generations per year. After only a century of testing, scientists have been able to observe over 5,000 generations of fly reproduction. Thus, the fruit fly has been considered an ideal candidate for studying evolution in action. If mutations are the mechanism that would allow for molecules-to-man evolution as evolutionists suggest, then watching mutations, and even causing mutations in fruit flies to speed things up, could provide strong evidence to support that contention.
That is precisely how fruit fly evolutionary studies have been viewed for over a century. In 1910, Science magazine first published a paper on mutations in fruit flies.3 Since then, observing fly reproduction and mutation has been a popular past time. The result after a century? Flies are still flies. Humans stepped in to “help nature” by carefully inducing various mutations (and trying to keep the flies alive afterwards). To be sure, thousands of different mutations have been documented, including flies without eyes, flies with different colored eyes, flies with their legs growing out of their heads instead of antennae, extra pairs of wings that do not function, different colored flies, flies with big wings, flies with useless wings, etc.4 The result of such tampering was summarized well by Colin Patterson, the late paleontologist who served as the editor of the professional journal published by the British Museum of Natural History in London: “The spectacular effects of homeobox gene mutations were first seen in Drosophila, early in the history of genetics. Carriers of some of these mutations certainly qualify as monsters—though without much hope.”5 Such directed mutations have not resulted in evolutionary progress for fruit flies—rather, they have created monstrosities. And in spite of making such monstrosities, the mutated fruit flies are still understood to be fruit flies.
Continue reading at Apologetics Press