Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 exptools 1/6/84; site ihuxm.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxl!ihnp4!ihuxm!gjphw From: gjphw@ihuxm.UUCP Newsgroups: net.misc Subject: Re: Creat/Ev #4 Message-ID: <932@ihuxm.UUCP> Date: Wed, 14-Mar-84 11:49:11 EST Article-I.D.: ihuxm.932 Posted: Wed Mar 14 11:49:11 1984 Date-Received: Thu, 15-Mar-84 00:59:52 EST References: <686@seismo.UUCP>, <2453@brl-vgr.ARPA> Organization: AT&T Bell Labs, Naperville, IL Lines: 16 Just a quick comment about speciation in fruit flies. In a book called *Darwinism Defended*, an historian of science makes a quick reference to an experiment in adaptation for a colony of fruit flies. A biologist tried raising fruit flies using alcohol as their primary food. Not only did the fruit flies adapt to the new food over several generations, but they also began to develop structures that would have made mating with their parent or originating fly population impossible (due to physical constraints, not genetic). The experiment was not continued to see how long a complete speciation would require for this fruit fly colony. -- Patrick Wyant AT&T Bell Laboratories (Naperville, IL) *!ihuxm!gjphw