In Search of an Intelligent Understanding of Variation in Nature.

Varieties can be considered interfertile organisms that can have a fertile offspring.

Following this simple principle, one of my self imposed tasks has been to try to identify in the literature those organisms that are able to interbreed producing a fertile offspring. On doing that, I have found on a daily basis that there are thousands of organisms currently and mistakenly considered as members of different species, that are, respectively, just varieties of the same kinds of organisms.

Some of my references can be seen at:

http://www.reocities.com/plin9k/limiting-species.htm

My basic working principle is that:

Organisms can only originate similar organims.