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Only if the croc egg desiccates, towards the end of incubation (before hatching time) we may notice the leathery membrane of the egg depress-in (like vacum). otherwise, it will always swell up and even (when shells have flakedn and fallen off) become roundish. When desiccation occurs there are congenital defects like curved neck, twisted tail...etc. (more in LAKSingh and H.R.Bustard 1982: British Journal of Herpetol).
Thank you.
Dr. Lala A. K. Singh, Prakruti Bhavan, Neelakantha Nagar Bhubaneswar, Orissa, PIN: 751012, INDIA
--- On Tue, 28/10/08, Charles Deeming <charlie@...> wrote:
From: Charles Deeming <charlie@...> Subject: Re: [Palaeoology] Air chambers To: Palaeoology@... Date: Tuesday, 28 October, 2008, 2:33 PM

No soft-shelled eggs collapse if they lose weight.
Under normal incubation conditions no reptile egg forms an air space - pliable-shelled turtle eggs swell (as do parchment-shelled lizard and snake eggs) and hard-shelled turtle and croc eggs don't lose water.
Anybody interested in the papers below? Recognition of vertebrate egg abnormalities in the Upper Cretaceous fossil record Frankie D. Jackson*, James G. Schmitt...
No soft-shelled eggs collapse if they lose weight. Under normal incubation conditions no reptile egg forms an air space - pliable-shelled turtle eggs swell (as...
Only if the croc egg desiccates, towards the end of incubation (before hatching time) we may notice the leathery membrane of the egg depress-in (like vacum)....
Fascinating - thatnks too, Lala. So perhaps that's why the croc hard shell layer seems (as far as I can tell - may be wrong) to fall off more readily than...
Thanks Charles. That's interesting. So crocs don't need to poke their noses into an airspace while still in the egg. Does this mean they remove the fluid...
Croc hatchling is a miniature replica, almost in all respects, of the adult.. It breaths, and may even bite (snap at) immediately after hatchling. Sometimes,...
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