- Horseshoe crab blood can detect and trap bacterial toxins
- Its blood is harvested for a test to ensure medical products are not contaminated
- Up to 600,000 crabs are captured each year for their blood
- Between 10-30% of donor crabs die in the process
(CNN)During World War Two, soldiers learned to fear treatment as much as enemy bullets. Unsanitary conditions and equipment in field hospitals made open wounds a breeding ground for bacteria that killed thousands, particularly the fast-acting and barely detectable gram-negative strains that caused toxic shock syndrome, meningitis, and typhoid.