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Old 02-19-2013, 05:58 PM   #18 (permalink)
NeilBlanchard
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Ding, ding, ding! Horseshoe crab blood has an autoimmune reaction to any contaminates within about an hour, so it is a very quick and reliable way to check medical drugs for contaminates. They used to use live rabbits (I think?) and this process took like 2-3 days, so this is why horseshoe crab blood is so valuable!

By the way the horseshoe crab species is about [350 million] years old. Many, many other species depend on them to survive.

Video: Crash: A Tale of Two Species | Watch Nature Online | PBS Video
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Last edited by NeilBlanchard; 02-20-2013 at 09:26 AM.. Reason: corrected information
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