The research maps biofluorescence across 459 glowing fish species and shows just how varied the colors have become.

A major new study shows long-term ocean warming is steadily reducing fish populations, putting global food security at risk.

The answer depends on the type of fish and how it’s stored.

Fresh salmon for sale at the Pike Place Market in Seattle, Washington State, USA. (Photo by Wolfgang Kaehler/LightRocket via Getty Images) When it comes to what we eat, most people don’t know enough ...