How does your shore end up with 30 million horseshoe crabs? There are only two possible ways. The first is that your city is overrun by them in a horror movie. (Maybe because they flew there.) The ...

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A robot crab called "Wavy Dave" has helped scientists learn about crab mating behaviors. Male fiddler crabs have one oversized claw, which they use to attract females by standing outside their burrow ...

CC0 Usage Conditions ApplyClick for more information. Fiddler crabs and many other marine organisms have strong cycles of courtship and larval hatching that are linked with the tidal amplitude cycle.

The yearly red crab migration on Christmas Island sees 100 million crabs migrate to the sea to mate in accordance with the Moon’s lunar phases. With so much in the news about exoplanets and UFO ...

How does a beach in Philadelphia get overrun by 30 million horseshoe crabs every year? The answer won’t surprise you, but the specifics will. How does your shore end up with 30 million horseshoe crabs ...