There are plenty of fish in the sea, but how can you count stock levels or protect endangered fish without seeing or catching them? Subscribe to our newsletter for the latest sci-tech news updates.

KINGSTON — Volunteers gathered at Kingston Point Beach on Saturday to see what is really going on in the Hudson River’s brackish waters. The Great Hudson River Estuary Fish Count takes place at ...

The fish swimming up the lower Snake River number in the hundreds of thousands, but proponents of breaching the four dams on that stretch of the river say they’re the wrong fish. Statistics provided ...