>I don't want to start a flame string, I am just curious as to what the >cross breeding is proving/disproving? This goes back to the biological definition of "species". A group of animals if of the same species if those animals will procreate together to produce viable offspring of the same species that will then procreate to produce viable offspring. --Cliff ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@majordomo.pobox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@majordomo.pobox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!