Photo: PBS Nature Documentary Crash: A Tal...  ...of The Atlantic has the fascinating story of the horseshoe crab and how its blue blood has strange medical proper...  ...llion: The marvelous thing about horseshoe crab blood, though, isn't the color. It's a chemical f...  ...them in inescapable...

If you live near the Delaware Bay shore, you can g...  ...heck of a beach orgy happening now: thousands of horseshoe crabs are piling on top of one another mating ...On the...  ...ng place for millions of years.If you're a female horseshoe crab , then it's your night. You'll swim to shore, meet...  ...p to 13 ma...