What is an Atlantic horseshoe crab? Atlantic horseshoe crabs may appear alien, but their history as earthlings is pretty impressive. They’ve been around for 450 million years, predating the ...

What is a Japanese spider crab? They may look like something from a 1950s sci-fi film, but Japanese spider crabs are gentle giants. And giants they are. Of the 60,000 species of crustaceans on ...

This story appears in the August 2016 issue of National Geographic magazine. All around her, guys wave seductively, beckoning her to their beach homes. How will the female fiddler crab pick a mate?

What is a hermit crab? There are over 800 species of hermit crabs worldwide, and almost all are ocean dwellers—though people are likely most familiar with the dozen semi-terrestrial species ...

Invasive green crabs: If you can't beat them, eat them. Invasive green crabs: If you can't beat them, eat them. Oil Inside Gulf Crabs May Be Shed Oil Inside Gulf Crabs May Be Shed Oil Inside Gulf ...

This story appears in the October 2019 issue of National Geographic magazine ... of death for this endangered species. Fishing for crab and lobster involves placing traps (also called pots ...