Crab's blue blood saves lives
 

Horseshoe crabs' bright-blue blood protects us but not all survive their "donations."http://feeds.feedburner.com/~ff/rss/...?d=yIl2AUoC8zA</img> http://feeds.feedburner.com/~ff/rss/...?d=7Q72WNTAKBA</img> http://feeds.feedburner.com/~ff/rss/...rY:V_sGLiPBpWU</img> http://feeds.feedburner.com/~ff/rss/...?d=qj6IDK7rITs</img> http://feeds.feedburner.com/~ff/rss/...rY:gIN9vFwOqvQ</img>


More...