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Re: Sauropods and those little heads
<< <<<<< Even so, endothermy would have been expensive. I don't see
reason to think that Mesozoic forage and browse was any more nutritious
(compared to meat) than nowadays. An endothermic animal the size of a
C-130 Hercules (not Galaxy as I said earlier) would have to tuck into a
godawful lot of cycads daily.
Perhaps there is some sort of middle ground? Something that big would be a
very nice heat reservoir. Perhaps only a low level of endothermy would have
been needed to maintain the internal temperature?