Reasonable said:
theprof00 said:
Reasonable said:
butcherknife said:
OoSnap said:
butcherknife said:
"Living Fossil" does not mean there was absolutely no change. Every single one of your examples has changed, but they have changed relatively little. But to say that they have not changed at all and are indistinguishable is absolutely false...100% false. The premise of your post and your positions is completely, 100% not true.
|
Actually, they haven't changed morphologically and anatomically. If I am wrong please specificy in what ways they have changed.
|
Actually, yes they have changed...every organim will change through genetic drift alone. It is impossible for a species to remain exactly the same for millions of years.
The onus is on you (not me) to prove your assertation that they have not changed...please show a species (pick any that you like, ANY) that has not changed at all in the millions of years of it's existence.
|
What about Coelacanth? I'd need to research it to be sure but I'm pretty sure there's little change noted there. Given their nature I seem to remember from biology (long time ago now for me) that there were quite a few fish that hadn't changed compared to their fossil record?
|
extinction level events barely affect mid-deep sea, and the only thing that ever changes is the temperature, and maybe migration of other fish.
Additionally, there have been lots of evolutions to the coelacanth. There are like 20 species that come from coelacanth. It's just that coelacanth was still able to survive as well. Again, evolution is not some process that happens to the species over time. It is characterized by violent changes in the characteristics, and reproduction from only specific members. Evolution doesn't necessitate the grand parent dying out.
|
I know evolution doesn't mean the orginal strains dying out. I was just remembered something about there being examples of fish that show very little change vs available fossil records. Clearly you'd expect sea based life to have more examples of minimal evolution.
|
Check out this link: http://listverse.com/2010/05/14/top-10-prehistoric-fish-alive-today/
These are the more "interesting" of living complex creatures, but there are thousands of single celled organisms and prehistoric plant life underwater compared to a very very small handful of land animals. Even the Land animals that have aged well are amphibious, like crocs, turtles, salamanders, etc.
I didn't mean to imply that you thought it meant original strain dying out, I just wanted to clarify for others by using your example, as I did here with the above link and accompanying text.
