Species numbers alone do not fully capture how ecosystems are changing. In a global study, scientists analyzed long-term data ...

Fatty fish such as salmon, sardines, trout, and herring are among the healthiest choices for heart and brain health, thanks to their rich omega-3 fatty acid.

By Will Dunham WASHINGTON, Feb 18 (Reuters) - For more than a century, biology textbooks have stated that vision among vertebrates - people included - is built from two clearly defined cell types: ...

Body shape had a clear influence on energetic demand. Deep-bodied fish, with their larger surface area, generate more resistance as water moves around them, making them naturally better at resisting ...

Two species of small, deep-dwelling fish called pearlsides possess eye cells that break the rules of vertebrate vision, combining features of rods and cones into a single hybrid photoreceptor never ...