30, 2019 3:28 p.m. The Pennsylvania Fish and Boat Commission confirmed Monday that an invasive species ... dorsal fin running the length of their upper body. But snakeheads have a long anal ...

But this less celebrated species ... fish. The nickname arises from its tendency to swim close to the surface, raising its dorsal fin above the water. As for iridescence, river catfish have ...

The iconic image of a dorsal ... fin, or we have others with bioluminescence and fishes are using them to attract prey, and ...