A few hundred million years ago, fish fins morphed into the arms and legs of terrestrial animals, according to evolutionary theory. So, you’d think science would know just about everything about them ...

Something funny about fish is that they are completely silent. They don't need to meow or bark to be hilarious; they are ...

Salmon is the most popular fin fish species, capturing nearly 40% of category sales. The fin fish category contributed 37.8% to seafood department dollar sales for the 52 weeks ended December 27, ...

A 400 million-year-old fossilized fin from a strange-looking, primitive fish is shedding light on how fins evolved into limbs that enabled animals to walk on land. Subscribe to read this story ad-free ...

Ask anyone who keeps freshwater tropical fish to name the top five most exotic, bizarre fish available to hobbyists, and chances are the black ghost knife fish will be in there. Besides looking ...

Two males of the cichlid fish Astatotilapia burtoni, the model organism used to study spine and soft-ray development in Hoech et al. (Credit: Joost Woltering) Two males of the cichlid fish ...

The alternative text for this image may have been generated using AI. Figure 2: Fin ray bending resulted in increased activity of the pectoral fin nerves. The alternative text for this image may have ...