A quart of horseshoe crab blood is now worth $ 15,000, on account of its value to the pharmaceutical industry. (slate.com)
If you are interested in wildlife and research, you can participate in one of Mass Audubon's ongoing wildlife studies, such as Horseshoe Crab Population surveys, vernal pool monitoring, snake surveys, and others. (massaudubon.org)
The marvelous thing about horseshoe crab blood, though, isn't the color. (artviewer.org)