No other animal on Earth is like the horseshoe crab. Considered a living fossil, the horseshoe crab has survived countless mass extinctions unscathed, and appears much as it did when it first appeared nearly half a billion years ago. It also has eerie blue blood that, surprisingly, has essential uses in the medical field. Could this ancient creature have saved your life at some point?
Stop robocalls for good with Kim’s eBook
Robocalls interrupt us constantly and scam Americans out of millions of dollars every year. Learn Kim's best tricks for stopping annoying robocalls in this handy guide.