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Re: K-T Theories

The problem with this is that it assumes that viruses are
ideally designed--a newly virulent virus mutation might wipe
out its host population, then die out itself because it had no
more hosts. Or, equally plausible, a virulent virus might wipe
out all but a small remnant population, which then succumbed
to the sort of chances that a large population can survive--a
flood, say, or a couple of years in which no eggs hatch. I
agree, though, that a virus can't be the whole answer to the K/T

Vicki Rosenzweig
New York, NY