Crawdad, crawfish, crayfish. No matter what you call the crustaceans, the rusty crayfish, an interloper from the Ohio River watershed, has become one of the most destructive invasive species in the ...

When it comes to male crayfish, not all claws are created equal. In these crustaceans, the left and right claws might be very different sizes — and the larger one isn’t necessarily stronger, ...

Crustacean deception Crayfish can often make opponents back off from a fight by pretending they are stronger than they really, say researchers. Their findings are reported today in Biology Letters.

A new study from researchers at The University of Queensland has revealed that the impressive claws (chelae) of freshwater crayfish come with certain costs: The size slows their swimming and saps ...

HUNTSVILLE, Ala.— Following more than a decade of advocacy by the Center for Biological Diversity and allies, the U.S. Fish and Wildlife Service today protected the slenderclaw crayfish as endangered ...

State officials on July 24 said an invasive crayfish species that has been found in several Michigan counties was discovered in a rearing pond at Wolf Lake State Fish Hatchery. The Michigan Department ...

Be careful about what you’re adding to your next crawfish boil as an invasive crayfish has been found in Texas. The Texas Parks and Wildlife Department says that the Australian Redclaw Crayfish showed ...

Lacunicambarus polychromatus, the paintedhand mudbug, is one of 427 crayfish species for which global location data is now available via a free-to-access map known as World of Crayfish. The mapping ...

Earlier this year, a school class caught young crayfish during our pond study class. Crayfish are types of crustaceans that also include shrimp, crabs, and lobsters. So, let's check out those ...