You guys remember that horseshoe crab we saw while walking through the mangroves? What if I told you that crab has been keeping mankind alive for decades and we didn’t even know it?
I was floored by this article. I’ve never heard of a scientific use for this animal, thinking they were just a really cool, prehistoric looking creature with a neato shell. I never expected that they would have blue blood that saves us from harmful bacteria in practically everything.