Darren New wrote:

> It's kind of hard to say how smart the floaty things are that shoot 
> yellow balls at you. The headcrabs are smart enough to do brain surgery 
> on you. ;-)

That doesn't require intelligence, only Intelligent Design - er, I mean, 
Evolution. ;-)

Of course, reality is stranger than any fiction. There are certain wasps 
that inject their eggs into oak trees. The grubs are genetic engineers, 
altering the life processes of the tree so that it grows a bulb of nice, 
nutritious tissue around the grub for it to eat.

But that's nothing. Another kind of wasp parasitises these things. And 
to do so, it has a drill tipped with *metalic zinc* (!!) so it can drill 
through the thick woody bulb to get to the grub inside. o_O

Many other real-world parasites perform slightly scary feats of surgury 
and genetic engineering to complete their lifecycle...

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*

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