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Scores of horseshoe crabs wash ashore Delaware Estuary beaches each spring to spawn.  Their eggs are a vital food source for migrating shorebirds.
Thai fisherman is exploring horseshoe crab in Chumphon
A horseshoe crab sitting on the beach.
Dead stingray fish on the shore watered by small waves on coast of  Arabic sea in Oman. Arabian Banded Whipray: Maculabatis randalli\nFamily: Dasyatidae.
Photo taken in Naples, United States
USA, Horseshoe Crab, Beach, Animal, Animal Shell
This photo was taken in the northwest part of Long island New York  in the Wildwood State Park. in the photo there is a dead  horseshoe crab that washed up on shore, the exoskeleton makes it seems like it is alive but the interior of the body is empty.  horseshoe crabs are one of the oldest in the animal Kingdome to almost not go through any evolutionary changes for around 450 million years.
Horseshoe crab in the ocean, Rio Lagartos, Yucatan, Mexico
Close up of Tachypleus gigas (commonly known as the Indo-Pacific horseshoe crab) at the beach.
Buzzards feeding on the carcass of a humpback whale calf
horseshoe crab in a shallow water
Marbled Godwit (Limosa fedoa) bird, foraging on a Pacific Coast beach.\n\nTaken in Moss Landing, California, USA.
Yellow horseshoe crab walking
Vernal pool tadpole shrimp or Tadpole Shrimp, Lepidurus parkardi, Jepson Prairie Preserve, California, found in Vernal Pools
Atlantic Horseshoe crab Limulus polyphemus walks along the white sand of Clam Pass Beach in Naples, Florida in summer.
A crab navigates the rocky terrain near water, its pincers and legs poised to manoeuvre the challenging environment. This crustacean's adaptability to both land and sea is highlighted by the wet, rugged surface it traverses.
Horseshoe crabs spawning in the end of spring - beginning of summer on Slaughter Beach in Delaware Bay
a single willet feeding along the waters edge at the Cape Canaveral National seashore near Titusville, Florida
Red Knot (Calidris canutus) summer plumage with a few retained winter feathers, stretching leg\n\nEccles-on-sea, Norfolk, UK.                 July
Horseshoe crab with crusty, beat-up shell, waiting for the tide to return. Photo taken at Shired Island in the Lower Suwannee National Wildlife Refuge. Nikon D7200 with Nikon 200mm macro lens
brown horseshoe crab animal sea dead turn over on golden sand beach. hard shell life in tropical natural.
Gravel, Rock - Object, Stone - Object, USA, Horseshoe Crab
A Horseshoe Crab Shell on the beach.
Big thai horseshoe crab in water bassin
Atlantic Horseshoe Crab, limulus polyphemus
Sandpiper feeding on a beach with small waves.
A Red Knot stands next to an upside down Horseshoe Crab with its tail sticking up in the air on a sandy beach in the morning sunlight.
Chinese Mitten Crab on White Background
Sea life shell
Lepidurus packardi, the vernal pool tadpole shrimp, is a small, rare species of tadpole shrimp (Notostraca) found in temporary ponds of the western United States. Branchiopoda. Jepson Prairie Preserve, California.
Free Images: "bestof:Red knot horseshoe crab feeding.jpg en Red Knot feeding on eggs of Horseshoe crabs Mispillion Harbor Delaware http //www flickr com/photos/usfwsnortheast/..."
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