There are a few problems with what you have claimed there. The vast majority of all the species that have ever existed are extinct, and so none of these are transitional to anything alive today, having existed on side branches that since died out. However those side branches will have had common ancestors with other branches, and we should see patterns that demonstrate this - and we do. The therapsids are an example of this, since these fossils that we find are mostly (if not all) on side branches, but show the characteristic evolution of the jaw and skull, so they demonstrate the transitional features that we are looking for in the fossil record. Other than those species which became extinct directly, all organisms are transitional so I am not certain what your request is. you want lots of transitional series? The problem with that request goes back to my original point in that fossilisation is rare and very environmentally dependent, so the odds of us getting an organism, and then one if its descendents is actually quite rare, especially since there are a large number of other organisms as well, we are far more likely to find fossils relating to other species that have become extinct.JAL said:You example is indeed an amazing illustration of fossil rarity. And I did not mean to imply that the paucity of transitional forms is an insurmountable problem. You say it is not a problem at all. Perhaps you're right, but I'm not entirely convinced that your response meets the force of my objection. Allow me to rephrase the arguents to show why:
- My argument: Regardless of the total number of fossils existing today, we should see the following RATIO: For each fossil of a species found, there should be a thousand times as many transitional fossils found.
- Your reply: There are many good reasons for the low numer of total fossils.
- In other words, your reply doesn't seem to address my argument. I was arguing about RATIOS, whereas you were arguing about TOTALS. My argument has nothing to do with the total number of fossils or their rarity.
Again, I'm not saying that my objection is insurmountable. But I'm not sure it can be trivially dismissed in a cavalier manner, either. So here is my stance. Evolution has enough supporting evidence that I currently accept it as a very good possibility, but only as a possibility.
So what we should see is evidence that the species we find share ancestral relations in an appropriate order, and we do. transitional series are rare, but the fact that they exist at all is significant evidence for evolution, and against special creation within a very short timeframe.
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