[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: Homeothermic T.rex
Anusuya Chinsamy <anusuya@pobox.upenn.edu> writes:
> (12-14 july 1993) Kolodny
> & Luz concluded that the oxygen isotopic signals are altered due to post
> mortem chemical changes. They analyzed 6 fossil localities which included
> fish, aquatic reptiles. dinosaurs and mammals and found that the in every
> locality the oxygen isotopic ratios are similar. They suggest the
> homogenization of the signal is a result of paleolatitudes rather than
> homeothermy.
Ah, but Kolodny & Luz seem conveniently to have missed the point that
fish and aquatic reptiles will tend to be homeothermic by the nature of
their environment - only a few fishes such as tuna have any endothermic
ability, so these animals tend to stay in waters of generally constant
temperature.
-dick
| Omnes hic mentes mihi sunt, non Conlegioni Armorum Digitalum. |
| All opinions here are mine, not Digital Equipment Corporation's. |
| |
| Easynet: VORTEX::CALIPH::BINDER Internet: binder@zk3.dec.com |