[Administrator: Two emails came in today with this subject. They are presented here in the order of their arrival. The second one is not a response to the first.] HELEN A number of times it has been claimed that macroevolution is speciation. I and others have tried to point out that speciation is a variable concept depending on the mating cues of the animals involved and is therefore not a reliable pointer genetically or physically. From the glossary, p. 637, of Mark Ridley's undergraduate textbook Evolution, Blackwell Scientific Publications, Oxford, 1993: "Macroevolution: Evolution on a grand scale: the term refers to events above the species level; the origin of a new higher group, such as the vertebrates, would be an example of a macroevolutionary event." In other words, creationists were NOT making up that definition.