Subduction Zone
Veteran Member
Sure they do. Haven't you heard of "getting a tan"?... with the exception that apes do not change skin color no matter where they live.
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Sure they do. Haven't you heard of "getting a tan"?... with the exception that apes do not change skin color no matter where they live.
Since I'm an entomologist and not a human biologist, I can only relate facts that I learned getting my BS in biology degree. There may be more reasons that lighter skin pigmentation was selected for in northern environments. But those are two that I learned.I've seen this written here several times and don't doubt it, but it raises a question. If the earliest humans lived in a very hot and sunny region (Africa?) where darker skins were selected for then moved across the world into colder and less sunny regions, what caused those with lighter skin to predominate in the less sunny regions. It seems to me that there had to be some survival based advantage to a lighter skin once the advantage of a darker skin was removed.
Anyone know the answer?
Excellent example. And another termed adaptation by the general population that is not the adaptation associated with evolution and a change in genetics of a population.Sure they do. Haven't you heard of "getting a tan"?
And you do know.Many followers of evolutionary doctrine do not know the difference between macroevolution and microevolution.
I wish they would spend more time on that issue... and they wouldn't get so confused between what is fact and what is belief.
Seeing the vulgarity of many evolutionists on the forum, I can foresee, without being a prophet, the grievous social state in which evolutionists would plunge human societies if their doctrine were extended to all of humanity.
It is difficult to discuss a technical subject with anyone that feels they are an expert, but whose expertise clearly arises from misinformation and unrelated dogma and not from the understanding arising from study, a familiarity of the knowledge and work with the subject.It is not a "doctrine" but it is a scientific fact. Just like gravity. The theory of gravity explains the facts of gravity and the theory of evolution explains the facts of evolution. Doctrines are based upon faith. Science is based upon evidence. But sadly I have found that creationists never understand the concept of evidence and are too afraid to learn what is and what is not evidence and why.
It is not a doctrine because it is not a faith. It is not "written in stone" either. Well many of the facts are since fossils are strong evidence for evolution.
I do not like to run to dictionaries, so I am going to ask you what do you mean when you say "doctrine"?
Many followers of evolutionary doctrine do not know the difference between macroevolution and microevolution.
I wish they would spend more time on that issue... and they wouldn't get so confused between what is fact and what is belief.
Yes, getting a tan is not an example of evolution. It could be said to be a result. Also, white skin probably preceded dark skin. Take a look at a chimpanzee, our closest relatives. They live in the forest and have fur. But they like us have a broken gene for making vitamin C. That means that they either have to eat fruit (which they do quite often) or at least get some sun. Fur also acts like melanin. It blocks UV rays. Chimps are fairly light under their fur and the ancestor that we shared with them probably was light skinned as well.Excellent example. And another termed adaptation by the general population that is not the adaptation associated with evolution and a change in genetics of a population.
That is an example of a developmental change that doesn't require a change in the genetics.
But we have seen new species arise. The changes won't be huge and would probably not be clear to you or me. But they can be clear to the populations involved. You appear to have a strawman version of those concepts. You did get it right that macroevolution is change on the species scale. But that was about it.Microevolution is about small mutations that allows diversity ... which is a demonstrated fact.
Macroevolution is the idea that those mutations can be so big that they allow one species to become a different one ... which is just a belief. On this belief is based the human evolutionary doctrine.
Mutations can't take that level, because of genetic laws.
The acolytes of the doctrine don't know many things. That's why they attack people who question their beliefs like dark ages inquisitors.
Yes, there are a lot of pieces to this puzzle and not some simple magic that is implied by the OP where apes give birth to people and they suddenly change color.Yes, getting a tan is not an example of evolution. It could be said to be a result. Also, white skin probably preceded dark skin. Take a look at a chimpanzee, our closest relatives. They live in the forest and have fur. But they like us have a broken gene for making vitamin C. That means that they either have to eat fruit (which they do quite often) or at least get some sun. Fur also acts like melanin. It blocks UV rays. Chimps are fairly light under their fur and the ancestor that we shared with them probably was light skinned as well.
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Darker than your average European maybe, but not nearly as dark as the darkest of human beings.
Of course losing hair would have been gradual and there would have been a gradual darkening of skin as our ancestors evolved. Everything would have balanced and changes would not have been noticeable.
The definition that the mutations would be so big that it would result in a change of species is wrong. It is not some macromutation that suddenly jumps the offspring to the level of a new species. It would be the accumulation of mutations over time that gradually increase the divergence of different populations to the point they do not interbreed with much or any success.But we have seen new species arise. The changes won't be huge and would probably not be clear to you or me. But they can be clear to the populations involved. You appear to have a strawman version of those concepts. You did get it right that macroevolution is change on the species scale. But that was about it.
These have alopecia, but are otherwise healthy animals from the look of them. They have a female with this trait at the local zoo.Yes, getting a tan is not an example of evolution. It could be said to be a result. Also, white skin probably preceded dark skin. Take a look at a chimpanzee, our closest relatives. They live in the forest and have fur. But they like us have a broken gene for making vitamin C. That means that they either have to eat fruit (which they do quite often) or at least get some sun. Fur also acts like melanin. It blocks UV rays. Chimps are fairly light under their fur and the ancestor that we shared with them probably was light skinned as well.
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Darker than your average European maybe, but not nearly as dark as the darkest of human beings.
Of course losing hair would have been gradual and there would have been a gradual darkening of skin as our ancestors evolved. Everything would have balanced and changes would not have been noticeable.
... with the exception that apes do not change skin color no matter where they live.
I see you have beat me to the point that it is not the size of the mutation that is significant or defining of those two descriptions of evolution.But we have seen new species arise. The changes won't be huge and would probably not be clear to you or me. But they can be clear to the populations involved. You appear to have a strawman version of those concepts. You did get it right that macroevolution is change on the species scale. But that was about it.
I feel ashamed of what they are capable of doing to defend a doctrine...