A tiny crustacean from the Black Sea has quietly spread through the Great Lakes for nearly two decades, and now the last holdout has fallen. What happens next depends on whether anyone can stop the ...

Donn Branstrator and his team pulled up the traps just offshore of the Duluth-Superior Harbor. There, in the nets, were ...

Bloody red shrimp have established a population in Lake Superior, completing their spread across all five Great Lakes, a study confirms.

Scientists in New Zealand said Tuesday they have discovered a new species of "ghost shark", a type of fish that prowls the Pacific Ocean floor hunting prey more than a mile down. Researchers have ...