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This Living Fossil May Have Saved Your Life

Jun.24 -- The horseshoe crab is a living fossil that's called Earth its home for almost half a billion years. And if you’ve ever had a vaccine, injection, or a medical implant, then you might not know that you’ve been relying on this prehistoric creature’s blood to save your life. Now, after decades of waiting, a new synthetic solution could change all of that. (Video by Leila Hussain & Robin Fall)