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Re: Island mammals

> Jay Freeman wrote:
> >...surely there is another issue, one of transport.  Birds -- >quite large
> birds -- can easily reach any island in the world.  >Non-marine mammals and
> non-marine reptiles have it tough.  

then why do the Galapagos have larger-than-normal deserty tortoises?  Or
iguanas which are now marine, but are related to the green tree-climbing
iguana?  (I'm out on a limb on that one), or elephants-for gosh sakes?!?