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Apologetics & Social Issues


The Bombadier Beetle

Subject: Re: Dinosaurs and Job
Date: 15 Nov 1999 03:45:01 GMT
From: Chris Ho-Stuart < 
Newsgroups:
aus.religion.christian
Robert Davidson > wrote:
> Rod Jackson wrote:
>
>> Have you heard of the bomadary beetle (sp?) - with it’s double chamber
>> system. It makes little bombs by squirting two explosive chemicals out its
>> back at an angle so that the chemicals collide in the air a little way
>> behind the beetle. A similar system could be used to have a creature that
>> literally breathed fire.
>
> For some reason this innocent beetle (the bombadier beetle) has a lot of
> misinformation out about it.  Try mixing the two chemicals found in the
> beetle’s body, and you will find no explosion occurs.

Let’s tell the full story here. 
Properly catalyzed, the two chemicals 
do react violently; and the beetle does 
in fact use the catalyzed explosion as 
a defense mechanism.

Hence Rod’s main point stands. 
There is not the slightest evidence of 
any fire breathing creatures, of course; 
but his point that living creatures can 
do surprising things with explosive 
chemicals is true enough.

Rod’s description of the beetle is 
a bit off, and it could be that he has 
been mislead by some creationists who 
have asserted (for the purposes of a 
characteristically incompetant 
anti-evolutionary argument) that the 
chemicals explode when mixed. They 
don’t, in fact; because the 
additional catalyst is required.

The truth is even more surprising. The 
explosion does not take place outside 
the beetle, but inside the beetle’s 
body. There are two chambers.  The first 
chamber is where the chemicals are mixed. 
The mixture is then fed into a reaction 
chamber, where the explosion is catalyzed 
to take place inside the beetle’s 
body. It is because the explosion take 
place inside that the beetle is able to 
direct a powerful jet of boiling hot 
chemicals from an exit of the reaction 
chamber.

You can find lots of information on the 
bombadier beetle at the talk.origins 
archive, at
http://www.talkorigins.org/faqs/bombardier.html 

Cheers-Chris Ho-Stuart



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