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Re: sauropods: homotherm,heterotherm or gigantotherm?

2005/9/14, David Marjanovic <david.marjanovic@gmx.at>:
> > In the water we have huge ectotherms like whale-shark...
> Yes, but it doesn't even need to carry its own weight.

Try swim... It costs more energy than walk or run in air.

> > On the other hand, mammals carnivores never gotten so big - the
> > biggest is the killer whale with more or less 5 tonnes.
> Doesn't the sperm whale count?

Okay, _Architeuthis_ is a noteworth prey...

> > The extinct cave bear could reach about 900 kg.
> The "creodont" *Megistotherium* (literally "biggest beast") is said to have
> been bigger, and carnivorous (unlike the herbivorous cave bear). Then
> there's *Andrewsarchus*...

How much bigger? About the size of a, let's say, _Deinosuchus_?


Roberto Takata