THE escape reaction of the crayfish consists of a rapid backward swimming movement brought about by powerful flexion of the abdomen. In the course of a primarily anatomical re-investigation (as ...

These crayfish are larger, more aggressive, and reproduce more quickly than native species, leading them to dominate ecosystems and disrupt food webs. Rusty crayfish have a significant impact on ...

Genetic testing revealed that the crustacean was a new species now named the Ocoee crayfish, according to a study published April 1 in the peer-reviewed journal Zootaxa. Senior author Roger F.

Residents in southern Texas reported spotting an unusual creature, which Texas Parks and Wildlife Department biologist Archis Grubh identified as an invasive crayfish species that "does not belong ...