OK, let me reword then:Ken wrote: ↑Mon Dec 11, 2023 4:18 pmThey are more complex. That's certainly true. But the term "advanced" is not a term you would use in this context in biology.ken_sylvania wrote: ↑Mon Dec 11, 2023 4:16 pmAre humans a more advanced species than the single-celled organisms that people imagine were the first life forms to evolved from dead matter?Ken wrote: ↑Mon Dec 11, 2023 12:58 pm
Evolution doesn't imply that something is better, more developed, or improved. Simply that it is more adapted to its particular environment. Nor is there any plan or end point.
So, for example, if there is an ancestral bear species that spreads across North America you would expect those bear populations that habit the far arctic will evolve traits that make them more successful in that environment (white fur to better camouflage them when hunting seals on white ice sheets, wider paws which are better for swimming in artic seas, smaller heads which are better for penetrating seal blow holes, and longer sharper teeth as they are 100% carnivorous). Likewise, you would expect those bears that habit more temperate climates to develop (evolve) adaptations that make them more successful in those habitats (brown fur for better camouflage in mountains and forests, blunter teeth because they are more omnivorous, etc.)
Does that mean that polar bears are more evolved or more advanced or better than grizzly bears? Absolutely not. The two species have simply evolved differently in response to different selective influences. One is not better or more advanced than the other. And if we see a long period of global warming where the arctic is ice free then one would expect that polar bears will either adapt over time or be replaced by grizzly bears. Either one could happen. Likewise, if we saw a new ice age and glaciers once again covered north America then we would expect polar bears to expand and grizzly bears either adapt or be replaced.
What eveolution asks us to believe, is that a random change can happen to the text of a book that will modify it in such a way that the modified version might be better suited to the taste of those who copy books. The randomly changed book will therefore be copied more often than the original. Rinse, repeat several million times, and behold, a college level textbook on treatment of traumatic brain injury (assuming that is what the copyists are finding to be the most useful book).