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Eyes evolved first, then boney fish. Both were in the Cambrian. Eyes have also evolved independently around 20 times, because they are a good solution to common issues.
See my previous quotes for when genetic code is added, endogenous retroviral insertions into cells of a germ line is one way.
Can we specify more clearly what you'd claim is wrong?
Would you claim that retroviruses don't insert DNA increasing the size of the genome, they only change DNA that is already there?
Eyes evolved first, then boney fish. Both were in the Cambrian. Eyes have also evolved independently around 20 times, because they are a good solution to common issues.
See my previous quotes for when genetic code is added, endogenous retroviral insertions into cells of a germ line is one way.
Archaeopteryx is still hotly debated in its positioning because of a wide array of bizarre characteristics it has. The question on when something starts being a bird is a tad bit messy because some extinct animals that most people definitely don't want to say are birds, like Epidexipteryx, might be more closely related to modern birds than Archaeopteryx was.
Many
The first eyes were improvements upon improvements to light-sensitive cells, which could have started off as it's intrinsic feeling of heat. 'Feel heat, move towards heat, find light-loving algae food.' Eventually some light detection allowed them to better find where the food was, and this was very gradually improved upon over many generations.
Can we specify more clearly what you'd claim is wrong?
Would you claim that retroviruses don't insert DNA increasing the size of the genome, they only change DNA that is already there?
The genome is separate altogether for all species.
For instance, humans have 22, ferns have 24.
- Those smart ferns!
- - We pulled off before we got really complex, (at least as genetically complex as a fern).
Many
The first eyes were improvements upon improvements to light-sensitive cells, which could have started off as it's intrinsic feeling of heat. 'Feel heat, move towards heat, find light-loving algae food.' Eventually some light detection allowed them to better find where the food was, and this was very gradually improved upon over many generations.
The retina, the first eyes were basically just retinal patches. The upside down image correction wasn't needed until we had developed very concaved retinas, getting towards the development of the iris.
That's for our eyes, a couple of lineages started differently. Trilobites have no iris and have almost stone eyes, made out of... calcium? Something hard and crystalline.
The retina, the first eyes were basically just retinal patches. The upside down image correction wasn't needed until we had developed very concaved retinas, getting towards the development of the iris.
That's for our eyes, a couple of lineages started differently. Trilobites have no iris and have almost stone eyes, made out of... calcium? Something hard and crystalline.
The genome is separate altogether for all species.
For instance, humans have 22, ferns have 24.
- Those smart ferns!
- - We pulled off before we got really complex, (at least as genetically complex as a fern).
Genome size doesn't exclusively correlate to a complex phenotype, it just allows for one. Some of the longest genomes belong to bacteria. (Nor does it correlate to smartness lol).
But, how about an answer to that question on specifically what you'd claim is wrong with the science of retroviral and transposon DNA insertions, lengthening the genome? We are really at a point there where I can present you with science that should change your mind.
Genome size doesn't exclusively correlate to a complex phenotype, it just allows for one. Some of the longest genomes belong to bacteria. (Nor does it correlate to smartness lol).
But, how about an answer to that question on specifically what you'd claim is wrong with the science of retroviral and transposon DNA insertions, lengthening the genome? We are really at a point there where I can present you with science that should change your mind.
Gee wiz......It's awfully funny how those that could see waited for those that couldn't......(I mean to develop eyesight and all).
- - - I suppose they thought it in their best interest as playing fair; after all, no self respecting pack of wolves would attack a herd of blind sheep.
Gee wiz......It's awfully funny how those that could see waited for those that couldn't......(I mean to develop eyesight and all).
- - - I suppose they thought it in their best interest as playing fair; after all, no self respecting pack of wolves would attack a herd of blind sheep.