Fish rank as the most diverse group of vertebrates in the world. Scientists recognize over 37,000 distinct species, with many more waiting to be discovered. Most fish fall into the ray-finned group of ...

Predatory fish that evolved into the first terrestrial animals on Earth are still revealing insights into the origins of mammals—including new research into the eating habits of lobe-finned fish which ...

Add Yahoo as a preferred source to see more of our stories on Google. Salmon gets the stamp of approval from dietitians. But what other types of fish should you be eating? (Getty Creative) (Catherine ...