A year-long tracking study may have uncovered a previously unknown spawning ground for the Atlantic whitefish — one of Canada's most critically endangered species.

An Atlantic sturgeon preserved more than 100 years ago with straw and creosote is part of the collection of the Academy of Natural Sciences of Drexel University. (Emma Lee/WHYY) From Philly and the Pa ...

Scientists warn that record-high sea surface temperatures in the North Atlantic Ocean this year are having consequences for sea life. As marine heat waves there have worsened over the years, ...

The Atlantic sturgeon are an endangered fish, once abundant in the Delaware River. (courtesy of Dewayne Fox, a fisheries professor at Delaware State University) From Philly and the Pa. suburbs to ...

Atlantic cod are actually five separate species of fish, not one, researchers have claimed after conducting a genetic analysis – though not everyone agrees with their findings. “What we thought was a ...