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
from their lungs and start to breath when they hatch in the same way mammals do
at birth?

Cheers,

JJ


--- On Tue, 10/28/08, Charles Deeming <charlie@...> wrote:

> From: Charles Deeming <charlie@...>
> Subject: Re: [Palaeoology] Air chambers
> To: Palaeoology@...
> Date: Tuesday, October 28, 2008, 10:03 AM
> 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.
>
> Charles
>
>
> ----- Original Message -----
> From: strangetruther@...
> To: Palaeoology@...
> Sent: Friday, October 24, 2008 5:35 PM
> Subject: [Palaeoology] Air chambers
>
>
> Can anyone confirm that soft-shelled eggs don’t develop
> air-chambers? Hard to see how they could.
>
> Presumably crocs develop air-chambers. Do all
> hard-shelled eggs?
>
> Thanks for any views.
>
> Cordially,
>
> John V. Jackson