Subject: copper based blood

Al Romero (
Mon, 01 Feb 1999 18:24:32 -0600

>Date: Mon, 01 Feb 1999 18:18:43 -0600
>To: ralph bautzmann <>
>From: Al Romero <>
>Subject: copper based blood
>At 04:20 PM 2/1/99 -0600, you wrote:
>>Is it true that horseshoe crabs and squids have copper based blood? What
>>other creatures have this type of blood. Do these creatures orginate
>>from the same common anscestor?
>I am afraid that my area of expertise is marine mammals not invertebrates,
so you will have to direct your question to someone with an expertise on
marine invertebrates. I can tell you, though (because I also teach
evolution), that horseshoe crabs and squids are not directly related.
>Best wishes,