These amazing animals have distinct blue blood. Humans use their blood to test for bacterial contamination on intravenous medications.
Blood is extracted from live animals, and they are returned to the wild after extraction. While only four species of horseshoe crabs are found around the world, just one species resides in local waters.
HORSESHOE CRABS: WHEN & WHERE
After the social night, hit the water to observe horseshoe crabs in the wild! Sign up for a night dive at this beautiful shore diving site. Become a BHB expert with the PADI Blue Heron Bridge Diver specialty course.