New Species Creation?

Inquisitive,Welcome to EvC!I'm not clear on what you want. Speciation in a single generation, or large scale morphological change in a single generation?Mark------------------
Occam's razor is not for shaving with.

Inquisitive, It has, in fact, many of the polyploid plants are significantly larger than their "mono"ploid counterparts, but that's about it as far as I'm aware.Single generation speciation occurs via polyploidy, the replication of the entire genome. There is good evidence this is common in plants, possibly much less common in animals. Some more informationMark------------------
Occam's razor is not for shaving with.[This message has been edited by mark24, 08-04-2003]

Wounded King,I agree, it is simply an arbitray decision by us that decides when an asexual species speciates. The same goes for fossil lineages, for example, when exactly does a fish become a basal tetrapod, or when does an Australopithecine become Homo?Mark------------------
Occam's razor is not for shaving with.