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Paying to find non-GE wild corn?
"Brian Sandle" wrote in message ... Where is there any evidence of this. I think you are getting carried away with the classifications again. If you run out of hosts you just find more Jump species? You would have to do that before you killed every last one of the previous species. which isn't a problem, those who prey on only one species are very much a minority Lots of viruses tend to be specific to certain classes of hosts. yes, classes of hosts are normally groups of species Calici haemorrhagic disease jumped to rabbits in 1970s in China, though I don't know why. it is comparatively regular occurrance. I don't think I have heard of a single virus, bacteria or other parasite which has become extinct due to the extinction of its sole prey species. Jim Webster |
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