Re: Evolutionary Imagination


Bob Casanova wrote:
On 28 Mar 2006 13:59:30 -0800, the following appeared in
talk.origins, posted by "Ken Shackleton"
<ken.shackleton@xxxxxxx>:


Bob Casanova wrote:
On Tue, 28 Mar 2006 15:34:35 +1000, the following appeared
in talk.origins, posted by John Wilkins
<john@xxxxxxxxxxxxx>:

Von R. Smith wrote:
A.Carlson wrote:
On 27 Mar 2006 13:00:42 -0800, mccoy@xxxxxxxxxx wrote:


<snip>

Whales have hips. Can you name even one single solitary non-cetacean
that lives in the sea and has hips?

Can you name even one single solitary non-cetacean that lives in the
sea and breathes air?

Can you name even one single solitary non-cetacean that lives in the
sea and has remnants of a femur? (You do know what a femur is, don't
you?)


Umm, dugongs and manatees?

Pinnipeds? You know, seals, sealions, and walruses.

"Lives in the sea" is a bit of a stretch for pinnipeds.

Even elephant seals? My understanding is that they spend their lives in
the ocean except for breeding.

I think that exception is crucial. Cetaceans never leave the
sea (voluntarily); all the other examples given in various
posts do, at the very least in order to breed. Additionally,
all are capable of locomotion on land; cetaceans aren't.

Sirenians (dugongs and manatees) are completely aquatic.

Orcas sometime strand themselves deliberately - AFAIK no sirenian does
even that.

.

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