Posted by Linda Moore on December 30, 2004 at 16:08:10:
In Reply to: Copper based blood? posted by Brad on December 17, 2004 at 17:35:57:
Horseshoe crabs have copper-based blood. They're actually related to spiders and scorpions (and possibly descended from trilobytes). I've been told that the lobster is related to the cockroach. I wonder how many sea creatures are related to insect-like creatures on land.