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| Authored by: Anonymous on Tuesday, February 12 2013 @ 07:21 AM EST |
Some strange conclusions...
cold-blooded animals are simply animals with limited internal tempreture
regulation.
They still attempt external tempretaure regulation - sunning on rocks, hiding in
shadows etc.. - as the biochemical primitives of all animals operate best in a
narrow range of tempreatures.
Under ideal conditions more energy is available for reproduction etc .. but
when it is too cold they move very slowly as the chemical reactions that drive
muscles slow down.. and are easy prey for any warm-blooded predator that finds
them.
To make the point, i have never heard of a "polar rattle-snake", have
you?
So the cold-blooded animals would not have prospered under the hypothesised [as
the source of the ubiquitous layer observed in geological strata] world-wide
sun-blocking clouds of dust and ashes... [ Reply to This | Parent | # ]
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- Amphibian survival - Authored by: Anonymous on Tuesday, February 12 2013 @ 08:49 AM EST
- But - Authored by: Wol on Tuesday, February 12 2013 @ 03:10 PM EST
- But - Authored by: Anonymous on Wednesday, February 13 2013 @ 06:19 PM EST
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