Re: Transitional / intermediate
Posted: Sat Dec 10, 2016 5:10 pm
hughfarey wrote:*Sigh* Pity. He didn't last long....
Sic Semper Poe
"The heavens declare the glory of God; the skies proclaim the work of his hands." (Psalm 19:1)
https://discussions.godandscience.org/
hughfarey wrote:*Sigh* Pity. He didn't last long....
NO chance at all that is just your chosen interpretation?crochet1949 wrote:And God's Word Tells us Why it happened.crochet1949 wrote:No -- no myth -- just a real happening.Audie wrote:The flood is a myth.
Audie wrote:NO chance at all that is just your chosen interpretation?crochet1949 wrote:And God's Word Tells us Why it happened.crochet1949 wrote:No -- no myth -- just a real happening.Audie wrote:The flood is a myth.
For lo, either thine god is a great deceiver, or that polar ice is not really there? Or what?
Not wise or honest to confuse one's opinion with the sacred word of Almighty God.
I recognize that people believe in such things. I use the term for convenience, a litrrsry convention.crochet1949 wrote:Audie -- at least you Are acknowledging the existence of "the sacred Word of Almighty God." And, yes, you have said that you've read it at least a couple of times.
crochet1949 wrote:I've Not arrogantly announced Anything -- I've shared directly from Genesis -- it's there for Anyone - including You to read for yourself -- it's in English -- it says what it says. A person doesn't especially Like what it says, but it's still there.
I made some comments in the other thread, but I think the idea is that there should be many more transitional forms (with very little change between them) in between the fairly different creatures that we have fossils for - we just have a 'fully formed' this or that animal with noticeable gaps from one to the next.Audie wrote:Well, polar ice and transitional / not fully formed are different topics.
I was hoping for some clarification, but oh well.
This is a valid point, the first one on this topic which makes some sense. If every animal is fully formed and adapted to its environment, how come we have dozens of fossils of land-dwelling, unfeathered, unflying "ancestors" of birds, and dozens of tree-dwelling, feathered, flying birds, but remarkably few fossils of animals adapted to environments intermediate between the land and the trees.Nicki wrote:I think the idea is that there should be many more transitional forms (with very little change between them) in between the fairly different creatures that we have fossils for - we just have a 'fully formed' this or that animal with noticeable gaps from one to the next.
That could be right, but I'm talking about even smaller changes. How many generations would it take for feathers to develop in a whole population? Quite a large number, I'd say - but as Audie has said before, most organisms die without being fossilized and there might be many fossils that haven't been found yet.hughfarey wrote:This is a valid point, the first one on this topic which makes some sense. If every animal is fully formed and adapted to its environment, how come we have dozens of fossils of land-dwelling, unfeathered, unflying "ancestors" of birds, and dozens of tree-dwelling, feathered, flying birds, but remarkably few fossils of animals adapted to environments intermediate between the land and the trees.Nicki wrote:I think the idea is that there should be many more transitional forms (with very little change between them) in between the fairly different creatures that we have fossils for - we just have a 'fully formed' this or that animal with noticeable gaps from one to the next.
Actually putting it like that helps to explain the reason. There is a lot of land, and there are a lot of trees, but the ecological niches that require a reptile with feathers, or a bird with four claws, are few. There are some - even today we see the remarkable hoatzin - and before competition from other birds and mammals outperformed them there were more, but the evolutionary bottleneck, both environmentally and in time, meant that there really were fewer intermediate species between reptiles and birds, which consequently left fewer fossils.
Something similar can be seen with the organisms intermediate between fish and reptiles. There is a lot of water, and a lot of land, but rather less environment between the two, which is perhaps why there are many fewer riparian amphibians, even today, than fish or reptiles.
We do see that there will be a lot of specimens of some life form, and thenhughfarey wrote:This is a valid point, the first one on this topic which makes some sense. If every animal is fully formed and adapted to its environment, how come we have dozens of fossils of land-dwelling, unfeathered, unflying "ancestors" of birds, and dozens of tree-dwelling, feathered, flying birds, but remarkably few fossils of animals adapted to environments intermediate between the land and the trees.Nicki wrote:I think the idea is that there should be many more transitional forms (with very little change between them) in between the fairly different creatures that we have fossils for - we just have a 'fully formed' this or that animal with noticeable gaps from one to the next.
Actually putting it like that helps to explain the reason. There is a lot of land, and there are a lot of trees, but the ecological niches that require a reptile with feathers, or a bird with four claws, are few. There are some - even today we see the remarkable hoatzin - and before competition from other birds and mammals outperformed them there were more, but the evolutionary bottleneck, both environmentally and in time, meant that there really were fewer intermediate species between reptiles and birds, which consequently left fewer fossils.
Something similar can be seen with the organisms intermediate between fish and reptiles. There is a lot of water, and a lot of land, but rather less environment between the two, which is perhaps why there are many fewer riparian amphibians, even today, than fish or reptiles.
In a whole population..like if everyone on earth started having babies who were part of a genetic change to, say, feathers?Nicki wrote:That could be right, but I'm talking about even smaller changes. How many generations would it take for feathers to develop in a whole population? Quite a large number, I'd say - but as Audie has said before, most organisms die without being fossilized and there might be many fossils that haven't been found yet.hughfarey wrote:This is a valid point, the first one on this topic which makes some sense. If every animal is fully formed and adapted to its environment, how come we have dozens of fossils of land-dwelling, unfeathered, unflying "ancestors" of birds, and dozens of tree-dwelling, feathered, flying birds, but remarkably few fossils of animals adapted to environments intermediate between the land and the trees.Nicki wrote:I think the idea is that there should be many more transitional forms (with very little change between them) in between the fairly different creatures that we have fossils for - we just have a 'fully formed' this or that animal with noticeable gaps from one to the next.
Actually putting it like that helps to explain the reason. There is a lot of land, and there are a lot of trees, but the ecological niches that require a reptile with feathers, or a bird with four claws, are few. There are some - even today we see the remarkable hoatzin - and before competition from other birds and mammals outperformed them there were more, but the evolutionary bottleneck, both environmentally and in time, meant that there really were fewer intermediate species between reptiles and birds, which consequently left fewer fossils.
Something similar can be seen with the organisms intermediate between fish and reptiles. There is a lot of water, and a lot of land, but rather less environment between the two, which is perhaps why there are many fewer riparian amphibians, even today, than fish or reptiles.