[extropy-chat] bug evolution

John K Clark jonkc at att.net
Sat Nov 19 18:52:30 UTC 2005


"spike" <spike66 at comcast.net>

> Why is that?  Whenever a mammal is slain upon the freeway, its innards are
> red.  But any flying insect that smashes upon one's windshield is
> universally yellow inside

Insect blood moves nutrients but not oxygen as in mammalian blood, insects
are so small that oxygen can just defuse into the insect cells. The iron in
hemoglobin is replaced with copper in insects hence the different color.

    John K Clark











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