Re: Back-evolution of limbs.

[Larry Dunn <majestic_cheese@yahoo.com>]

---Jeff Hecht <jhecht@world.std.com> wrote:

> But marine mammals and reptiles _have_ returned to their ancestral
medium,
> the sea, and the flippers of an ichthyosaur or dolfin resemble the
fins of
> fast predatory fish, e.g. sharks.

My understanding is that both the earliest reptiles and the earliest
mammals were purely terrestrial forms, so I am confused.  What do you
mean?


==
Larry
http://members.tripod.com/~megalania/index.html

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