Re: Tiktaalik

["T. Michael Keesey" <keesey@gmail.com>]

On 4/6/06, Tim Williams <twilliams_alpha@hotmail.com> wrote:
>
> Haha!  Therein lies the rub.  Although all of these groups returned to the
> water, none of them reverted back to the exact morphology of a fish, or even
> a basal sarcopterygian.  Too much has happened for that, in terms of
> morphological change within these lineages.

Okay, fair enough. Although the polydactylous fins of ichthyosaurs do
come close!

I suppose it depends on exactly what one means by "body plan" (an
irritatingly imprecise term).

> I've heard whales must leap out of
> the water in order for sperm exchange to occur.

Whaaaa...?
--
Mike Keesey
The Dinosauricon: http://dino.lm.com
Parry & Carney: http://parryandcarney.com