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Evolution Observed

Subduction Zone

Veteran Member
Thanks for that.

And ring species are also a powerful biogeographical argument for speciation occurring - so called macroevolution, although I think that the definition of that word varies according to context so that it never occurs.

One familiar creationist poster on RF likes to point out that all finches are still in the same family, which is correct even in the technical (taxonomical) sense of family (family Fringillidae). In her case, the goalpost has been moved from speciation to generating new biological families.

There are also problems defining species when it comes to creatures that don't reproduce sexually such as bacteria. I believe that bacterial have to be classified according to morphology, gram staining characteristics, and nutritional requirements.

Yep, a totally different standard needs to be applied to bacteria. And that reminds me of the rather foolish question asked so often about why bacteria are still bacteria. They are highly evolved, just "differently evolved" than we are. And moving of the goalposts will be a constant problem in these debates. Sometimes people try to move them all the way to abiogenesis, at that point I remind the person that they have admitted that evolution itself is a fact by moving the posts that far.
 

David T

Well-Known Member
Premium Member
download.jpeg
Must admit, I'm not sure if it is me but you do write in riddles.

Like it or not scientists work by first observing something then trying to explain why it happens.
I think it is you who are trying to cause confusion.

Again you talk in gibberish. How do you know what they believed in pre-literate times? They couldn't write, so couldn't record what they experience or believed??
The whole sentence (s) just doesn't make any sense.

Darwin is a person who died 130 years ago. Why is he a cultural problem? What are you talking about?
A dogs is what?

Is English your second language?


:facepalm:

Southern Baptist? is that a rock band?
No polka really bad polka actually, but hey everyone loves their lederhosen. I have zero idea why. I mean they are embarrassingly odd. And the damn according music it sucks, unless it's Steve n the seagulls playing thunderstruck but that's parody!!! Objektivismus is a joke especially in German. I think they proved already how absurd that is thank you very much.
 
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It Aint Necessarily So

Veteran Member
Premium Member
I prefer to call them "forest humans" which is close to how they are referred to in India and East Asia and also consistent with the scientific term (Hominoidae).

That's probably true for the Malaysians as well:

Orangutan - Origin late 17th century: from Malay orang utan ‘forest person.’
 

sun rise

The world is on fire
Premium Member
It's not that simple, but I was once captivated by the "ontogeny recapitulates phylogeny" catchphrase as an evolutionary marker. While that has been superseded by the complexity of real embryonic development, However, embryos do undergo a period where their morphology is strongly shaped by their phylogenetic position, rather than selective pressures.[18] https://en.wikipedia.org/wiki/Recapitulation_theory
 

Altfish

Veteran Member
View attachment 19695
No polka really bad polka actually, but hey everyone loves their lederhosen. I have zero idea why. I mean they are embarrassingly odd. And the damn according music it sucks, unless it's Steve n the seagulls playing thunderstruck but that's parody!!! Objektivismus is a joke especially in German. I think they proved already how absurd that is thank you very much.
I was just about to say that.
 

Jeremiah Ames

Well-Known Member
No, It is a population of finches arising within a population of finches that is adaptive to an environment. This how evolution is observed to work.

Actually, research in tropical rain forests is the best evidence of this, because of the abundant environment you have related species, among plants, birds, and other life documented as populations of varieties, sub species, and closely related species that are adapting to different environments in the rain forests. When they have become isolated by adaption the genetic drift generates new species.

The extensive detailed fossil evidence for the evolution of horses and whales is probably the best evidence of this over millions of years. Example: in horses we have tracks of herds and fossil evidence of different hoves in the same population, and later fossils show distinct species fossil evidence of one hoof type being better adapted to the environment. This chain of evidence among horses shows more ancient species that are clearly not horses.

Another example of evolution from genetics is the existence of dormant ancestor DNA such as the dormant genes for teeth in birds. Also it is found the genes for feathers related to scale/skin DNA in crocodiles and alligators.
Thank you, that was helpful.
 

shunyadragon

shunyadragon
Premium Member
Any example of close relations among mammals the resulted different species Equidae, and the clear genetic relationship of Horses, Zebras, and donkeys. Zebras even evolved sub species in different environments.

The modern key to evolution is genetics, and tracing evolution through the mutation of DNA, and what is called genetic drift, when populations adapt to adapt to different and changing environments.
 

gnostic

The Lost One
Like it or not scientists work by first observing something then trying to explain why it happens.
I think it is you who are trying to cause confusion.
You are right.

Charles Darwin and Alfred Russel Wallace didn’t just make up the explanations first, then the came the evidences later.

It is the other way around.

They both travelled extensively, around the world, observing wildlife, and came home, trying to understand the diversity of animals (and plants).

It became apparent to both men that the environments at different geographical locations can have have effect on these animals. Hence, Natural Selection.

What is apparent, is that creationists, don’t understand speciation. They think evolution is where a cat can give birth to dog, or other such absurd nonsenses.
 

Sanzbir

Well-Known Member
Finches automatically tend to separate themselves into different groups, at least that is the observation. Dogs not so much.

But dogs are separated into different groups by humans, giving us even clearer group distinctions and clear evidence of those dogs evolving.
 

metis

aged ecumenical anthropologist
I don't think that is what people have difficulty with.
The reality, imo, is that they shouldn't have any difficulty with the basic premise of the ToE, namely that life evolves over time. Surveys of both Jewish and Christian theologians indicate that they largely don't have a problem with this as long as it is understood that all life is ultimately from God.
 

Kenny

Face to face with my Father
Premium Member
The reality, imo, is that they shouldn't have any difficulty with the basic premise of the ToE, namely that life evolves over time. Surveys of both Jewish and Christian theologians indicate that they largely don't have a problem with this as long as it is understood that all life is ultimately from God.
Usually it doesn't include man in that picture. I think the percentages would change if that were added. (Just an opinion)

Question: Is evolution suppose to be like a tree, the more time passes, more branches are made and the more one should see changes because quantities increase giving a greater percentage of potential change?
 

metis

aged ecumenical anthropologist
Usually it doesn't include man in that picture. I think the percentages would change if that were added. (Just an opinion)
But we well know that humans have also evolved and, as a matter of fact, we still are. The surveys of theologians I've seen do not remove humans from their consideration.

When I first started teaching anthro in the late 1960's, the oldest humans we had were dated at about 1 & 1/2 million years ago, but now we have human fossils that date back to 4 & 1/2 million years ago with a fairly recent find in Chad that's 6 million years old. However, with the Chad find, it has so many ape and human characteristics that, at least the last that I've read, they still are not willing to classify it as either one or the other, which is what we would expect to see as we get closer to that likely connection.

Here's a link to actually a half-way decent article on this as found at Wiki, and I think you'll see that your personal ancestry is much more ape-like than human :D : Human evolution - Wikipedia

Question: Is evolution suppose to be like a tree, the more time passes, more branches are made and the more one should see changes because quantities increase giving a greater percentage of potential change?
Exactly, but the tree tends to be rather irregular with many dead branches (extinct forms). Evolution is not an A gradually evolves to B thingy, but more of a hodge-podge of A, some of which evolves on, some not, and only some may form new species B, maybe C, maybe more, maybe none. IOW, it's not a "pretty" tree.
 
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