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Photo#352897
Atlantic horseshoe crab - Limulus polyphemus - male - female

Atlantic horseshoe crab - Limulus polyphemus - Male Female
Cape Henlopen State Park, Sussex County, Delaware, USA
May 13, 2006
Many mating on the shore all in just a small stretch of beach.
One male and one female

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Atlantic horseshoe crab - Limulus polyphemus - male - female Atlantic horseshoe crab - Limulus polyphemus - male - female Atlantic horseshoe crab - Limulus polyphemus - male - female Atlantic horseshoe crab - Limulus polyphemus - male Atlantic horseshoe crab - Limulus polyphemus - male

Cool find!
The last place I have seen horseshoe crabs was in my home country of Singapore. Down there they are common in estuarine habitats, such as mangrove swamps.

 
I've seen hundreds of these...
living fossils coming on shore to mate while out fishing on the York river. They are a sight to see, especially in large congregations.

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