BARBELITH underground
 

Subcultural engagement for the 21st Century...
Barbelith is a new kind of community (find out more)...
You can login or register.


Extinction?

 
 
rhizome
02:48 / 25.08.05
The recent (possible) re-discovery of the Ivory Billed Woodpecker in Arkansas has got me thinking a bit. For instance, take a species which has evolved to a certain level of competence among the fittest, a degree to which it functions at the top of its respective ecological stratum. This species is wiped out...literally, no more left...what is the possibility of this species evolving to its exact previous state years, decades, centuries, milleniums, eons, etc. down the road? Not to say that this is the case for the elusive Ivory billed Woodpecker of Arkansas. I understand that this question poses a bit of a paradox seeing as how if a species has become extinct it could not have been the "fittest," however, species have the possibility of becoming extinct through a panoply of reasons. Self-annihilation, large meteors...etc.... Can life re-invent itself? And, just for fun, is it possible that the ivory billed woodpecker of arkansas has done just this?
 
 
sleazenation
06:14 / 25.08.05
Simply put, an extinct species couldn't and wouldn't re-evolve.

Once a species is dead, it is dead forever. Convergent evolution might offer a species that looks similar, but it would share no direct genetic link with the extinct species - it would be a new species. To give an example, you could selectively bread zebras to produce an animal that looked like a Quagga, but it wouldn't be a Quagga because Quaggas died out a long time ago. the new life that had been created would look like a quagga, but that would be it...
 
 
werwolf
06:30 / 25.08.05
but what if all the circumstances that led to the original genome of the now extinct species apply again? could not a creature evolve with the exact same genome? chances for that must probably be astronomical.
 
 
Evil Scientist
11:20 / 25.08.05
Unlikely.

However, arguably extinct species could be revived through cloning techniques. Although, depending on the method and amount of time the species had been dead, modifications to allow it's survival would most likely count it as a sub-species to the "natural" one.
 
 
sleazenation
17:03 / 25.08.05
but what if all the circumstances that led to the original genome of the now extinct species apply again? could not a creature evolve with the exact same genome? chances for that must probably be astronomical.

Indeed, vanishingly small. Because such large terms of time and changing dynamics of environment drive natural selection...
 
 
Tuna Ghost: Pratt knot hero
21:37 / 25.08.05
Hell, it might be worth thinking about, what with the rate of extinction zooming further upward.
 
  
Add Your Reply