Re: [Re: [erect posture and its implications]]

[archosaur@usa.net]

100533.1710@compuserve.com wrote:
> 
> Archosaur J wrote (in "")
> 
> "Crocodylus palustris and Crocodylus niloticus
> are both known for traveling huge distances over
> land in search of better territory. I believe that 
> C.palustris was recorded at 15 miles from one water
> source to another.
> 
> Crocodylus porosus and Crocodylus acutus make oceanic
> journeys in search of better feeding grounds.
> 
> And that's just crocodilians. Galapagos tortoises travel
> many miles to communal nesting grounds and communal grazing 
> grounds. 
> 
> Same for galapagos land iguanas too.
> 
> And then there are all those little herps that make huge
> (comparitively) treks to their nesting grounds.
> 
> Just because most extant reptiles are small, doesn't mean 
> that they don't migrate long distances."
> 
> I am talking about being obliged to travel  long land  distances over
> relatively sustained periods (a round trip of hundreds of miles each year).
> Crocodiles aren't in the same league, say as wildebeest, however remarkable
> their exploits. I am imagining dinosaur migrations at least comparable with
> the long mammal migrations.
> 
> I'm not including aquatic migration because the original thread was the
> need for long legs/stride for walking.
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Oh, well in that case, just count the tortoises and 
land iguanas, which do make long treks to stationary
food sources. That and nesting grounds.

Archosaur J


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