Now small blue creatures resembling melted plastic are appearing on Californian beaches—again. Smithsonian reports that ...

Keisha Sedlacek is the federal director for the Chesapeake Bay Foundation and said blue catfish are a threat to the native species in the Bay, preying on nearly anything in their path.

Blue catfish are hungry creatures. They are found in most Chesapeake Bay tributaries, gobbling up species that environmentalists have worked to rebuild for years. From mussels and menhaden to ...