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RE: Insulation does not = "Warm-blooded"
Dr. Holtz wrote on 04/20/2001
> *Alberta-to-Alaska migration: in principle I don't have a problem with this
> However, our present evidence does not demonstrate such migrations.
> It DOES demonstrate that the species range of some taxa goes from
> but that doesn't mean that any one individual or population would move from
> Alaska seasonally, or even in a lifetime.
I like the idea of migrating dinosaurs. But I don't believe in it because
dinosaurs were very inefficient migrators energywise. You have to use less
energy for moving in water.
Migration may never be proofable. But for falsifying migration it may help to
find some dinosaur nesting sites or juveniles in Alaska. These would indicate
that dinosaurs lived all year round there. The time between juveniles big
enough to migrate and the beginning of the colder weather forcing migration
would have been possibly to short to make migration work.
Heinz Peter Bredow
P.S. I hope the winter in creteceous Alaska wasn't as bad as our april
weather in Germany.