RE: Insulation does not = "Warm-blooded"

[HPB1956@aol.com]

Dr. Holtz wrote on 04/20/2001

> *Alberta-to-Alaska migration: in principle I don't have a problem with this 
as such.
> However, our present evidence does not demonstrate such migrations.
> It DOES demonstrate that the species range of some taxa goes from 
Alberta-to-Alaska,
> but that doesn't mean that any one individual or population would move from 
Alberta to 
> 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.

Cheers

Heinz Peter Bredow

P.S. I hope the winter in creteceous Alaska wasn't as bad as our april 
weather in Germany.