John Tlumacki/The Boston World by way of Getty Images If you have ever gotten a vaccine or received an intravenous drug and did not appear down using a potentially lifetime-threatening fever, you are able to thank a horseshoe crab. Annually, fifty percent a million horseshoe crabs are captured and bled https://troytcktz.get-blogging.com/30756525/not-known-details-about-what-do-you-use-horseshoe-crab-blood-for