G
grannymh
Guest
ID is half falsified. Irreducible complexity as mark of a Designer is true; ignorance of the Designer’s identity (whether true or feigned) is false - an insult to the Father of all creation.
Again, the word evidence draws instant attention… evidence consonant with the thread rules is rarely presented.We look forward to seeing the abundant evidence of species change… when the meaning of species is well-defined as a single universal definition, applicable to all life forms.
All should be aware of the 'species problem’
Species is a category within a classification system. That system has changed from Aristotle up to modern times. So the meaning has shifted historically.
Then we have 3 criteria for classifying: form, function and genotype. A species definition must resolve the present differences between these three.
To prove that there was microbe to man evolution demands a single species definition. Else, some unscrupulous evols may change the definition along the way to suit their ideology (it could happen). Then we would have an evolution of the meaning of species.
Even Mayr listed 5 interpretations of species. Then there were added 26 more species "concepts", as the attempt to define species was abandoned.
There was an attempt to classify a type of Pacific salmon as an endangered species. Why did it take ten(10) years to decide this in court? Because no one could agree on the definition of species , or sub-species…
Some relevant quotes, from evols all:
“… I was much struck how entirely vague and arbitrary is the distinction between species and varieties” Darwin 1859
“No term is more difficult to define than “species,” and on no point are zoologists more divided than as to what should be understood by this word”. Nicholson (1872)
“Of late, the futility of attempts to find a universally valid criterion for distinguishing species has come to be fairly generally, if reluctantly, recognized” Dobzhansky (1937)
“The concept of a species is a concession to our linguistic habits and neurological mechanisms” Haldane (1956)
“The species problem is the long-standing failure of biologists to agree on how we should identify species and how we should define the word ‘species’.” Hey (2001)
“First, the species problem is not primarily an empirical one, but it is rather fraught with philosophical questions that require-but cannot be settled by-empirical evidence.” Pigliucci (2003)
“An important aspect of any species definition whether in neontology or palaeontology is that any statement that particular individuals (or fragmentary specimens) belong to a certain species is an hypothesis (not a fact)” Bonde
Sophists may try to claim macro-evolution by picking a few of the 31 species concepts and passing them off as the definition of species.
Do not fear, reader! The thread police will protect you and enforce the rules of evidence until we - or the thread - dies.
AMDG
Read your post, checked the links, liked the one that included chocolate on its “about” page. Most important, am coming to the conclusion that humans are their own species.
Question to you: How would you define the human species?
Would you use both natural kind and a biological classification to show its relationship to primates for example? What about form and function? My dictionary shows genotype as the genetic makeup of an organism or a group of organisms – would humans be an unique genotype because there are major differences between humans and the cousin chimps? Or what?