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3) Since mammalian flight and mammalian echolocation both exist in isolation, the flight-echolocation combination is not irreducibly complex and therefore does not disprove evolution.--[[User:Brossa|Brossa]] 15:24, 27 October 2008 (EDT)
 
3) Since mammalian flight and mammalian echolocation both exist in isolation, the flight-echolocation combination is not irreducibly complex and therefore does not disprove evolution.--[[User:Brossa|Brossa]] 15:24, 27 October 2008 (EDT)
 
: It was poorly worded, but the point was valid, that a certain group of creatures do need the sonar to fly, even if that was only some bats and not all.  I've reinstated and improved the entry.  [[User:Philip J. Rayment|Philip J. Rayment]] 22:14, 27 October 2008 (EDT)
 
: It was poorly worded, but the point was valid, that a certain group of creatures do need the sonar to fly, even if that was only some bats and not all.  I've reinstated and improved the entry.  [[User:Philip J. Rayment|Philip J. Rayment]] 22:14, 27 October 2008 (EDT)
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::It's clearly a waste of time to remove it again, but the point is most definitely not valid. To approach validity, there would have to be no current non-echolocating bats and no non-bat echolocators. There would also have to be no fossil evidence of non-echolocating bats and no fossil non-bat echolocators. In reality, none of these four conditions are met. Therefore there is no theoretical impediment to an echolocator evolving flight or a flyer evolving echolocation, since the two traits are entirely separable and need not have arisen simultaneously. --[[User:Brossa|Brossa]] 23:07, 27 October 2008 (EDT)
    
== Reversion explained ==
 
== Reversion explained ==
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