EvC Forum: Evolving the Musculoskeletal System

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Topic: Evolving the Musculoskeletal System

Dogmafood

Member (Idle past 370 days)

Posts: 1815

From: Ontario Canada

Joined: 08-04-2010

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Message 38 of 527 (577499)
08-29-2010 9:36 AM

Environment

Is it correct to say that the environment in which an organism evolves works only as a post development filter for fitness?

Dogmafood

Member (Idle past 370 days)

Posts: 1815

From: Ontario Canada

Joined: 08-04-2010

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Message 109 of 527 (578030)
08-31-2010 3:00 PM

People are often born today with six fingers. Is it really that hard to imagine the first opposable thumb showing up out of the blue?

Six fingers or toes: The presence of an extra sixth finger or toe, a very common congenital malformation (birth defect).

http://www.medterms.com/script/main/art.asp?articlekey=7756

{AbE} sorry, I see that point has just been made.

Edited by Dogmafood, : No reason given.

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	Message 111 by Dr Jack, posted 08-31-2010 3:18 PM		Dogmafood has replied

Dogmafood

Member (Idle past 370 days)

Posts: 1815

From: Ontario Canada

Joined: 08-04-2010

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Message 116 of 527 (578045)
08-31-2010 3:45 PM

Reply to: Message 111 by Dr Jack
08-31-2010 3:18 PM

Thumbs, like nearly any other feature you care to mention, came about by very, very gradual changes not saltational jumps.

I have no doubt that you are correct. I was just trying to show a clear, present day example of the existence of the mechanism that allows for the change or evolution from one form to the next.

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	Message 111 by Dr Jack, posted 08-31-2010 3:18 PM		Dr Jack has not replied

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