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Re: Dinosaur Extinction Theory
Interesting...but why aren't tutles and crocs extinct then? They have
been through many climate changes during the last 65 Ma.
Matt
"Bruce D. Yager" wrote:
>
> Hello List! I have been following this thread, and I recall the question
> being brought up as to why only the "dinosaurs", and not other species
> became extinct at that time. Well, I have a pet theory that I should like
> to throw out here,..... probably I'm all wet,... but feel free to ponder and
> pick it to pieces!
>
> Are you aware that many turtles eggs are layed, neither male nor
> female.....and that the surrounding temperature of the egg site, at a given
> time during their developement, determines whether that hatch will be all
> male, or all female! If the dinosaurs reproductive apparatus worked the
> same way,..... a world-wide temperature change of only a few degrees would
> cause all offspring to be of only one sex. Now,... what if the larger
> species of dinosaurs were not long-lived enough to overcome this period of
> time? In other words,....when the Earth's temperature dropped (or raised)
> back to normal variances....there were no more of the opposite sex left
> alive to breed??? The dinosaurs simply became all male, or all female....
> due to climactic changes caused by the "big one" which hit a bit south of
> here, 65 or so million years ago.
> Turtles,.... on the other hand,...are very long-lived! So are the crocs!
> There must have been some very happy, old-aged males around,.... with a
> world full of females! When the climate changed,....eggs would once more
> start producing new males,...and the species was able to rebound!
> So, list..... whad'ya think????
>
> Bruce D. Yager
> bdyager@mhtc.net
>
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Matt Morgan
Mile High Meteorites
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