Re: Subterranean K-T strategies (was "I know why...")

["Adam Britton" <abritton@wmi.com.au>]

What makes you think that many dinosaurs didn't bury their eggs either?
Fossil evidence supports it.

Adam


----- Original Message -----
From: "Scott P. Smith" <scott@scott-smith.com>
To: <dinosaur@usc.edu>
Sent: Thursday, July 19, 2001 11:36 PM
Subject: Re: Subterranean K-T strategies (was "I know why...")


Sea Turtles: Bury their eggs

Sharks: Many give birth to live young (more protected from environmental
hazards than eggs).  I wonder if modern sharks that lay eggs evolved from
species that gave birth to live young.  If so, that would suggest laying
protection of eggs during K/T was the determining factor.

Mammals: No eggs.  Do platypuses and echidnas protect their eggs by burying
or laying in a tunnel - Yes I think.

snakes, lizards,crocodiles: bury eggs.


Frogs:  That's the hard one.  They do not bury their eggs.  Frogs don't seem
to fit the vulnerable egg theory.