Quote:Well, how did that mountain range just pop up and separate those two groups of critters that used to live side by side? [Laughing]
Wellll. the bear climbed over the mountain
the bear climbed over the mountain
The bear climbed over the mountaaiiiiin
To see what he could see.
The other side of the mountain
and some geographic isolation
geographic i-isolaaatiiiiioooon
was what did happen to he
Geographic isolation doesnt have to be cataclysmic, viz
.
cave rats over time had become adapted to living deeper in the twilight reaches of caves and had become sexuallty isolated freom the species they most assuredly derived from that still live on the surface. The tribs of the Blue Nile and the okovango have meanered thousands of meters in a few hundred years. In these meander cutoffs, cichlids, have evolved into nioches that have turned this little perch-like fish into variants with huge beaks for eating rock algae, or toothsome maws for ripping flesh like piranhas, all in the space of 4000 years. Imagine what another 200000 would do. (Think of the Missouri River, where meanders of a mile or more have resulted in burial of entire rive boats in less than 100 years
Quote:Why is it assumed that in a few short years (about 40 years. I thought it was supposed to take lllllooooooonnnnnnggggg periods of time?
Long is realative to the reproductive cycle of the orgqnism. If you doLong is realative to the reproductive cycle of the orgaanism. If you dont believe the issue of the gotsbeard developing a new species that was different freom both the European AND the American (kinda blows your assertion away), (even though the goatsbeard story is well documemnted in botany texts as an example of pan mictic evolution) you are , of course free to continue in your worldview, justdont mind those laughing sounds,
Your trouble is that your mindset doesnt allow ANY processing of evidence that is counter to youre worldview. While any scientist would love nothing better than to be that guy who was able to pitch all of evolution into the trash bin, its not happening. In fact, the data keeps piling up that shows that we can see evolution occuring in our brief lives.