I’m not sure I understand what you’re saying. What is your concept of what a species is? How is it to find? And how is there no problem with it?
Darwinism, evolutionarily ecology, and historical evolution, all deal with populations. And yet there are problems with species concepts.
Well, traditionally all mammals have hair. Yet that has nothing to do with what defines a a mammal. A mammal is any animal that has mammary glands. Mammal, mammary gland. That concept is useful. But it’s not right. It’s not wrong. It’s a mental construct.
In cladistics, it doesn’t matter if the...
So, was the ancestor of all mammals a mammal? What are (were) mammal like reptiles? Was archaeopteryx a bird or a dinosaur? The point here is not to argue but understand. Cladistic’s defines species and monophyletic groups as distinct moments in evolution. That is very useful as a conceptual...
I understand that we are apes and we are monkeys. That is not at issue. What is the common ancestor of all monkeys? What are the criteria that all monkeys share that no other taxa have?(I don’t like asking that question, but it seems like that question is important around here.) if we have a...
I did quote the entire post when I said “lol“ then I was asked what does that mean to which I replied laugh out loud. it should have been an easy matter to read up at that point if you took exception.
What he said was that fish do not exist. I accept your use of the term “misunderstood“ (in...
He made that statement three or four posts before I responded with a laugh out loud which is what you objected to.
i’m wrong about what? I have claimed that fish do in fact exist. I have claimed fish do not form a monophyletic group. I have claimed that sharks are fish. I have claimed that...
Agreed.
Where did I make such a ridiculous claim? Source? Or should I read up? You are attributing ridiculous claims to me in error, pointing out that those claims are ridiculous, then stating that my reasoning is inconsistent?
The burden of proof is on me to ensure that you’ve read all the post in this thread? You took exception to me saying laugh out loud. And you didn’t bother to read up two or three posts at the time to see what I was laughing about? Source; it’s in this thread.
You should be able to read up just as well as I can. As far as your statement regarding the equivalence of your cousins; I reject that. Those are not equivalent statements. They are not logically equivalent. And they have no practical consistency. If I were to say that hagfish and sharks are...
Yes I understand what the stick figure was meant to represent. And yet I asked for a source. Which is what you just said is completely appropriate. I even asked point blank are you saying fish do not exist. And I was told fish do not exist.
I understand what he said. He said fish do not exist. I apologize to you for laughing at that ridiculously funny statement. I won’t let it happen again.
No I’m taking what Tiberius said. He said fish do not exist. I even asked him point blank to clarify do you believe fish do not exist. And he said fish do not exist. Reread what you just wrote. You basically gave two options one either you believe sharks or not fish. Are you believe that humans...
Why are you replying to Tiberius and yet in your post quoting something I said? Your ideal that the definition must necessarily rely on cladistics is what’s wrong. I never said fish are a monophyletic group. And that’s what cladistics. You are suggesting that recognizing an organism that has a...
Then why are you trying to insult me? When you said I obviously didn’t read your source, but you hadn’t even provided a source? I’m not the one using terms like ignorant and foolish.
All classification systems have issues. As this example obviously points out. Fish are easily definable as non-tetrapod vertebrates. That doesn’t mean this definition fits cladistics. It certainly doesn’t mean that fish don’t exist. Why do I have to say that a human is a fish if I think a shark...
Thanks. I appreciate this quote. Please note that it comes far after my request for a reference.And well I guess I’ll take your word for please no it’s not an actual citation even with the title and while I guess I’ll take your word for the quote please no it’s not an actual citation even with...
I don’t claim that to be my best response. But it certainly is the most appropriate response. When somebody says they don’t believe that fish exist, yes I tend to laugh. And when you say I can’t refute that fish do not exist, goodness I have to wonder.