Spawning season comes at different times of year depending on location, but the largest lovefest happens at Delaware Bay, where thousands of horseshoe crabs crawl onto the beaches in May and June.

For more than 400 million years, horseshoe crabs — 10-eyed, blue-blooded, dome-shaped sea creatures — have lived on our ...

Nearly twice as old as the dinosaurs, horseshoe crabs have been crawling ashore for more than 450 million years. In the past three decades, however, horseshoe crab populations have declined by ...

Each spring, horseshoe crabs crawl ashore and lay millions of eggs along Atlantic Coast beaches. Red knots, whose 19,000-mile annual migration is one of the longest on the planet, travel from the ...

Visitors to JR Kasaoka Station in Kasaoka, Okayama Prefecture, are greeted by a large billboard standing in front that reads: “Welcome to Kasaoka, town of horseshoe crabs.” The city of Kasaoka ...