Unlucky Horseshoe (crab)

The ancient Horseshoe 'crab' is reported to be under considerable threat of extinction as consequences of habitat loss, fishing, algal red tides and, especially, the use of its blood in pharmaceutical tests (https://www.theguardian.com/environment/2018/nov/03/horseshoe-crab-population-at-risk-blood-big-pharma). Strange how a beast can outlive the dinosaurs and fall victim to a medical procedure.