Climbing perch use their pectoral fins and tail to move around on land. They also use the spines on the lower edges of their gill covers ...

Two fins on either side almost a body-length long create a wave which pushes water backward, making the robot move forward. It’s modeled after such fish as the cuttlefish and the Nile perch.

A small, dark green fish with dusky bands, the climbing perch inhabits Far Eastern estuaries and rivers. It can wrap its pectoral fins around grass stems, drag itself long distances.

However, in October his perch fins turn very dark. “Then there will be snow. Perch fin is perfectly black. It's a bit boring, but it could be a hard winter,” says Frang. Svein Sparby, in Solør in ...

* Millington — Yellow perch and some white perch. * Tuckahoe Creek — Yellow perch, pickerel and very few white perch so far. * Patuxent River, Wayson’s Corner — Yellow perch.