jjares reviewed on 9/18/2023 + 3384 more book reviews

Horseshoe crabs aren't crabs but more like scorpions and spiders. Also, their blood is blue. The medical field has uses for that blood. They take the blood from the crabs and return them to the warm waters where they thrive.* They live a surprising 20 to 40 years and can weigh up to 10 pounds. They are night eaters and enjoy sea worms, etc.

* I wondered how medicine used this blood: The blue, copper-based blood quickly clots in the presence of bacterial toxins. Thus, researchers can use it to test intravenous drugs, vaccines, etc., to ensure they are bacterial contamination-free.

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