Many people do not realize, but the horseshoe crab is the most studied marine invertebrate in the world. And that's simply because of the biomedical industry. The horseshoe crab has many, many uses. The blood, for example, is responsible for Limulus Amoebocyte Lysate. That simply means they take the white blood cells out of the horseshoe crab and lyse it, or open it up, get the product out of it, and it's used for tests for gram-negative bacteria, which is a bacteria which causes most diseases in man. One horseshoe crab...sorry...a liter of horseshoe crab blood retails for about $16,000, and for that, you can get literally thousands of tests. And what is the horseshoe crab blood used to test for? Well simply, anything that goes in your body. So if you're taking a shot of penicillin, have a tooth implant, have a heart stent, a hip implant—any of those things have to be tested for purity using the horseshoe crab blood. In fact, NASA even uses horseshoe crab blood to test the astronauts, their suits, the ships, to make sure they're not bringing back contaminants into the environment when they come back to Earth. And when they're up in the ship, they often test the water to make sure it's pure using horseshoe crab blood to make sure there's not any bacteria in the water when they're out in space.