Blue blood from horseshoe crabs is needed for medicine, but a declining bird relies on crabs to eat
By PATRICK WHITTLE Associated Press PORTLAND, Maine (AP) — The horseshoe crab has been scuttling in the ocean and tidal pools for more than 400 million years, playing a vital role in the East Coast ecosystem along with being a prized item for fishing bait and medical research. Its blue blood is harvested for medical
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