[ExI] evolution problems

Henrik Ohrstrom henrik.ohrstrom at gmail.com
Fri Sep 14 19:27:05 UTC 2018

Bats and moths have evolved together, probably starting with normal sounds
for both and escalation and arms race as the logical result.
If it was a case of intelligent design we would se the usual signs of a
design committee, inside out retinas, brains rotated and mirrored, air and
fluid pathways crossing each other and so on.

Den fre 14 sep. 2018 19:59Dave Sill <sparge at gmail.com> skrev:

> On Fri, Sep 14, 2018 at 12:25 PM William Flynn Wallace <
> foozler83 at gmail.com> wrote:
>> Here's what I don't get about evolution:  a tiger moth developed the
>> ability to make ultrasonic clicks, which just so happen to interfere with a
>> bat's ability to locate them.
>> Doesn't that seem suspicious to you, like someone is messing with the
>> system?  random mutation is random, right?  'Just so happens'  - seems like
>> a huge coincidence to me.
> Not at all. Probably started with some mutation that caused minor, mostly
> ineffective clicking, but was effective enough to slightly enhance its
> owner's chances of reproducing. Over time, those moths whose clicking was
> more effective out-competed the others, and the "skill" was refined.
> -Dave
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