As Earth warms, species around the world—Adélie penguins, earthworms, gray snapper, pin oaks—are shifting into habitats once too cold for them. One such “climate migrant” is the Atlantic mud fiddler ...

Add Yahoo as a preferred source to see more of our stories on Google. Male fiddler crabs are small, with one oversized claw. David S. Johnson Nine years ago, I stood on the muddy banks of the Great ...

The crabs are part of a larger poleward migration of tropical species driven by warming ocean temperatures. While associated with mangroves, the crabs have expanded beyond the trees' new range into ...

Albeit very small, with a carapace width of only 3 cm, the Atlantic mangrove fiddler crab Leptuca thayeri can be a great help to scientists seeking to understand more about the effects of global ...

Fiddler crabs use their large claws to wave down females and didn’t take kindly to a robot newcomer in Portugal. Joe A. Wilde Like many people around the world, animal behavior researcher Joe Wilde ...

Taiwanese scientists have made progress in decoding a claw-waving communication system used by a fiddler crab species endemic to Taiwan, National Chung Hsing University said yesterday. Xeruca ...

A decade ago, I stood on the muddy banks of the Great Marsh, a salt marsh an hour north of Boston, and pulled a thumb-sized crab with an absurdly large claw out of a burrow. I was looking at a fiddler ...