Re: blue!

G'day Karl,

 >Guess Beth already answered that one, but here are my ideas on that
 >one:

I did and said essentially what you've said here, with just a few minor 
changes...

 >3) The blue skin pigment is there to help produce some kind of
'>vitamin' the aliens can't get otherwise.

More likely a symbiont, like the zooxanthellae in corals.

And you forgot...
8) That's the colour of their blood... insects have blood types that are

green, blue and clear as they're based on other compounds and chemicals
to 
ours.

Part from that spot on! ;)

Cheers

Beth

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Elizabeth Fulton
c/o CSIRO Division of Marine Research
GPO Box 1538
HOBART
TASMANIA 7001
AUSTRALIA
Phone (03) 6232 5018 International +61 3 6232 5018
Fax 03 6232 5053 International +61 3 6232 5053

email: beth.fulton@marine.csiro.au