Jason, You are absolutely right, Humans are responsible for the extinction of many recent species. But there are local catastrophes such as drought, floods, and disease that do affect smaller populations of animals. As recently as 50 million years ago, the climate changed worldwide, and areas such as south western Wyoming, and parts of Utah and Colorado started drying. Large lakes disappeared, and whole species of fish, and plants disappeared. My point was that I don't believe we have yet found the common factor that wiped out a whole group of animals.
At 08:01 PM 5/16/2002 -0400, you wrote: >Hello, >I think that the main cause of extinction today isn't changes in climate, but >people. I don't think that there is a recent animal that instantly pops into >your head that was killed off just because of climate changes, or one that >pops into your head after thinking about it for hours. There aren't many. >Regards, >Jason the 11 year old ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
