1). Can you give a suitable taxonomical definition which would include ALL monkeys but exclude apes?
2). Have you heard of cladistics, and if so why don't you think it is valid?
@'Screwtheguidelines': Does that mean you can't give a taxonomical definition that works and are equally unable to comment about cladistics? @'billie': I asked the same question in R
@'billie': I asked the same question in R and S - do you not think that your answer would have been more appropriate there?
@'sciencenut': Not a bad attempt at describing clades, it's not "all a matter of semantics" though. If the evolutionary ancestors of something are part of a clade does it not make sense that they, and all future ancestors, will remain part of the same clade? Whales and Dolphins, and their descendants will always be mammals (even if they lose the ability to produce milk from mammary glands), and similarly apes will always be monkeys (the earliest simians WERE monkeys). The taxonomic groupings which should be considered invalid are those that include more than one phylogenetic group - do you really think that this is a stupid way of classifying organisms, even though it would make evolutionary relationships far clearer? @'Damien': By what reasoning? @'Joan H': Nice attempt, but everything that you list as characters of apes can be found in at least some monkeys (and may be found in others in the future). Besides, don't you think that trying to
@'JazSinc': Good answer. Can you explain why you say "birds are not dinosaurs"? (Suggesting that humans are "fish" doesn't work because 'fish' is a polyphyletic grouping). @'nosson': Yes - but that doesn't explain why humans aren't monkeys. Do you have a reason?