In a message dated 7/26/2006 10:27:48 P.M. Eastern Standard Time, [EMAIL PROTECTED] writes:
Anyway, the Biological Species Concept, as with every single other way of defining species, has weaknesses. With this one, it's that it assumes sexual reproduction, so asexual organisms are hard to classify using it. Ultimately, in defining species, biologists use a combination of the various methods, tailored to the situation. Another problem is that members of a species may never have an opportunity to interbreed. A ring species where there are variations in a geographically continuous members who can interbreed with their "next door neighbor but not with individuals at the other end of the ring (be it around the world or around a geographic barrier.) _______________________________________________ http://www.mccmedia.com/mailman/listinfo/brin-l