Fish and Wildlife Research Institute

Horseshoe-Crabs

Horseshoe Crabs

Horseshoe crabs are important to both coastal communities and human health. Their eggs are an essential source of food for migratory shorebirds and some fish species.



Facts About Horseshoe Crabs and FAQ

Ancestors of horseshoe crabs date back to 445 million years--long before the age of the dinosaurs.

Florida Horseshoe Crab Watch-Linked with Limulus

Become a Citizen Scientist!  Join the program in which trained volunteers conduct scientific surveys of horseshoe crabs in Florida.

Why Document Nesting Beaches?

These sightings help biologists identify nesting beaches around the state.

Report Your Nesting Horseshoe Crab Sighting

Have you seen nesting horseshoe crabs? Let us know! Report sightings of horseshoe crab mating activity with this online questionnaire.

The Horseshoe Crab Fishery in Florida

In Florida, most horseshoe crabs are collected live for use in aquaria and research.

Further Reading and Limulus Links

Articles, publications and helpful websites about horseshoe crabs.

Glossary of Crustacean Terms

Gallery



FWC Facts:
Manatees have molars but no front teeth (no incisors or canines). Manatee teeth are unusual among mammals because they are continually replaced throughout the animals' lives.

Learn More at AskFWC