The luxurious scarf features illustrations of the miraculous horseshoe crab, a creature older than the dinosaurs. Birds like red knots, semipalmated sandpipers and ruddy turnstones rely on the eggs of this ancient species to fuel their Herculean migrations. The medical industry also loves horseshoe crabs for their astounding blue blood, which can detect toxins. The color palette has rich tones of greens and blues with pale periwinkle shells.