Understanding through Discussion


Welcome! You are not logged in. [ Login ]
EvC Forum active members: 59 (9025 total)
47 online now:
DrJones*, dwise1, jar, PaulK (4 members, 43 visitors)
Newest Member: JustTheFacts
Post Volume: Total: 883,336 Year: 982/14,102 Month: 385/597 Week: 163/96 Day: 18/13 Hour: 0/0


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   Evolution doesn't make sense.
Taq
Member
Posts: 8469
Joined: 03-06-2009
Member Rating: 6.0


(1)
Message 76 of 80 (652565)
02-14-2012 3:59 PM
Reply to: Message 73 by caffeine
02-13-2012 9:26 AM


They'll always be Heterocera, the moth clade, but if they evolve into a form that doesn't look like a moth they're not really moths any more.

Hence the problem with colloquial naming traditions. We arbitrarily decide what is an isn't a moth based on our feeling at the time.

Is a chihuahua a wolf? Most would say no. Did chiahuahuas evolve from a wolf-like ancestor? Most likely. We will say that chihuahuas and wolves are still dogs, but when did those wolves stop being wolves and become chihuahuas? That dividing line would also be an arbitrary one.

The system that science has settled on is cladistics, and in that system you never evolve out of your clade. This differs from the colloquial method where species are arbitrarily assigned to different groups based on shifting notions of what is or isn't indicative of a group.


This message is a reply to:
 Message 73 by caffeine, posted 02-13-2012 9:26 AM caffeine has responded

Replies to this message:
 Message 79 by caffeine, posted 02-15-2012 3:23 AM Taq has not yet responded

  
Taq
Member
Posts: 8469
Joined: 03-06-2009
Member Rating: 6.0


Message 77 of 80 (652567)
02-14-2012 4:02 PM
Reply to: Message 74 by jar
02-13-2012 10:02 AM


Re: annudder question
For example, if a invertebrate evolved a backbone would it be classified as a vertebrate?

If a mammal evolved wings would it be classified as a bird?


This message is a reply to:
 Message 74 by jar, posted 02-13-2012 10:02 AM jar has responded

Replies to this message:
 Message 78 by jar, posted 02-14-2012 4:17 PM Taq has not yet responded

  
Newer Topic | Older Topic
Jump to:


Copyright 2001-2018 by EvC Forum, All Rights Reserved

™ Version 4.0 Beta
Innovative software from Qwixotic © 2021