The humble fish, or ichthys (ἰχθύς) in Greek, was a symbol that played a crucial role in the early years of Christian history. But why?

Fans of McDonald’s Filet-O-Fish might find an unwanted surprise in their food — but experts say it’s a good thing.

The baby fish, which is roughly the size of a pea, was raised from a surprise egg mass discovered at Shedd Aquarium last fall. Experts say the achievement could help reduce pressure on wild frogfish ...

The tripod fish doesn’t swim much. Instead, it stands on three elongated fins, conserving energy while currents deliver food.

A tiny, yellow-and-orange juvenile warty frogfish rests on a coral-like object in a habitat at Chicago's Shedd Aquarium. A tiny fish is making big waves at Shedd Aquarium as animal caretakers ...

The season leading up to Easter means eating more seafood for a lot of people, whether they’re religious or not. Fast-food chains, always eager to please, release new fish sandwiches and other seafood ...

Add Yahoo as a preferred source to see more of our stories on Google. When you think of fast food, burgers and chicken are probably the first things that come to mind. Though most fast-food chains ...

This is read by an automated voice. Please report any issues or inconsistencies here. The federal government recently released new dietary guidelines aimed at “ending the war on protein” and steering ...

A fast-aging fish is giving scientists a rare, accelerated look at how kidneys grow old—and how a common drug may slow that process down. Researchers found that SGLT2 inhibitors, widely used to treat ...

Redondo Beach environmentalists this week celebrated the opening of a white seabass grow-out pen that’s set to help the fish grow healthily in a safe habitat before being released into the ocean. The ...