The Pennsylvania Fish and Boat Commission is monitoring invasive rusty crayfish that act like gladiators as they try to take over native species.

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.

Marwell Zoo opened a new Native Species Zone, which features Hampshire’s first white-clawed crayfish conservation ...

Marwell Zoo opened a new Native Species Zone, which features Hampshire’s first white-clawed crayfish conservation ...

They even eat little fish, little minnows and things like that and baby sport fish. So that’s a big impact." This map shows where rusty crayfish have been found in Pennsylvania. They have the ...