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#124690 - 03/06/04 01:03 PM Two Animals
Wordwind Offline
Carpal Tunnel

Registered: 09/30/01
Posts: 6296
Loc: Piedmont Region of Virginia, U...
What are some examples of animals that appear to be on the surface very similar, but are, in fact, quite different in at least one distinctive regard?


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#124691 - 03/06/04 01:15 PM Re: Two Animals
Faldage Offline
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Registered: 12/01/00
Posts: 13803
There are numerous marsupials that, through environmental pressures, appear very similar to placentals that fill equivalent environmental niches. I'm thinking specifically of a wolf-like marsupial.

http://www.ucmp.berkeley.edu/mammal/marsupial/marsupialwolf.gif


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#124692 - 03/06/04 03:04 PM Re: Two Animals
Capfka Offline
Pooh-Bah

Registered: 06/28/02
Posts: 1624
Loc: Utter Placebo, Planet Reebok
Use the past tense, that man!


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#124693 - 03/06/04 03:27 PM Re: Two Animals
wwh Offline
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Registered: 01/18/01
Posts: 13858
Dear Faldage: Der Quibblemeister asks is it not
filling a similar niche in predator hierarchy
rather than adjusting to environmental pressure?


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#124694 - 03/06/04 04:51 PM Re: Two Animals
Faldage Offline
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Registered: 12/01/00
Posts: 13803
Methinks Pfranz is trying to out quibble you, Dr Bill.


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#124695 - 03/07/04 08:41 AM Re: Two Animals
Capfka Offline
Pooh-Bah

Registered: 06/28/02
Posts: 1624
Loc: Utter Placebo, Planet Reebok


- joe [a quibble is worth a thousand facts] sunday


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#124696 - 03/07/04 09:16 AM Re: Two Animals
wwh Offline
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Registered: 01/18/01
Posts: 13858
Dear WW: Not a really good example, but the lamprey eel
and the true (Sargasso?) eels look quite similar except for
mouth parts.

Here's a URL with a lot of pictures of fish found in Pennsylvania:
http://216.239.53.104/search?q=cache:qDo3fZN4SbsJ:sites.state.pa.us/PA_Exec/Fish_Boat/pafish/fishhtms/chapindx.htm+picture+lamprey+eel&hl=en&ie=UTF-8

Sorry that URL made screen go wide.


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