The lifesaving secret hidden inside a horseshoe crab's blue blood

CHATHAM, MASS. (WHDH) - A familiar sea creature that has helped save lives for decades may now need saving itself. Early each summer, horseshoe crabs crawl<a class="excerpt-read-more" href="https://whdh.com/news/the-lifesaving-secret-hidden-inside-a-horseshoe-crabs-blue-blood-and-the-race-to-protect-the-species/">Read More</a>