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Re: Dino sex and therm tally rant (and feather origins thrown in)



At 09:27 PM 7/16/97 EDT, jamolnar@juno.com wrote:
>On Mon, 14 Jul 1997 22:28:55 -0700 Bettyc <Bettyc@flyinggoat.com> writes:
>>jamolnar@juno.com wrote:
>>> Do you mean have a rubbery egg so that you can release it from a 
>>height
>>> and it can bounce unharmed?  Remember that sea turtles lay their 
>>eggs in
>>> sand, and if the eggs drop down, they are hitting something soft 
>>anyway.
>>> Wouldn't a nesting dinosaur have something soft lining the nest 
>>whether
>>> the eggs were soft or not?
>>
>>ok-here's a thought...dinosaurs developed feathers before flight so 
>>that
>>they could have something to pull off and line nests with.
>>what do you think?.........
>
>Maybe the feathers were for the chicks to be able to break their falls
>with (mom carries them and then drops them quickly?)
>
>>
>>> The fact that all dinosaur eggs found so far are even fossils tends 
>>to
>>> rule out the rubbery shell idea.  A rubbery egg like that of today's
>>> reptiles would fossilize rarely if at all.
>>
>>not if it had the same conditions burying it.  Should fossilize quite
>>nicely.
>>
>How many rubbery-shelled reptile egg fossils are there?
>
>Judy Molnar
>Education Associate, Virginia Living Museum
>vlmed@juno.com
>jamolnar@juno.com
>All questions are valid; all answers are tentative.
>
>