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Re: Extinction from Space - again

I do not know how true this is, I've been wondering myself, but I was told
by an amphibian specialist that frogs could have survived the KT by
burrowing and hibernating.  I guess there are species of frogs that can
spend almost a year under ground without "croaking" :-) (sorry).  I
personally lived in a household with a pet frog that was left with us.  We
didn't quite know how to take care of it and I think at one time it went
for four months without eating before we wisened up.  It is very possible
that at the time of impact, frogs were hibernating and then came out a
year later unscathed.  It would only take a few species.  Also frogs have
large amounts of offspring, and can also change sex, so.. I would think
they could rebound from near extinction rather quickly if they were not
molested any further.  Oh yes, the frog at my place did survive our
neglect.  Now as for birds and crocs......?

-Bill Parker
Northern Arizona University

On Wed, 12 Aug 1998, JAMES SUTTON wrote:

> Another point that I failed to make in the earlier post is the magnitude of
> the blast(s) at the K-T.
> A crater as big as the Chicxulub woud require roughly 10,000 times  the
> entire peak nuclear arsenal of the world to produce.  Chicxulub is what
> 150 km.  Manson is about 40 km.  So, are we talking about some
> simultaneous (relatively speaking) that ran up values of explosive force
> more than 15,000 times our peak power?  Probably so. And we may also
> find other craters of 65 MYA of similar sizes.  Somehow, I don't have
> much a problem accepting the demise of dinosaurs under the conditions
> of such a huge expenditure of energy, esecially when it may have been
> more distributed over the earth than we think.  What I don't understand is
> the survival of the frogs.
> Wiwaxia