Fairy wrasses are swimming jewels, flitting and flouncing about coral reefs. The finger-length fishes’ brash, vibrant courtship displays are meant for mates and rivals, and a new study suggests that ...

Dominant males of an Indonesian species of fish turn black during periods of heightened aggression, scientists have discovered. Their blackened markings, which quickly emerge at the start of a ...

Speckled sea trout, also known as spotted sea trout, are a popular inshore gamefish species found across the eastern and southern coasts. While they resemble their freshwater cousins in looks, these ...

As one of the world’s most diverse vertebrates, fish can come in a variety of shapes, colors, and sizes. With over 33,000 species inhabiting the Earth’s aquatic habitats, some are bound to be a bit on ...

Fish evolution is so strange that it's given us species that can count, change color by "seeing" with its skin and even fish that can "sing." But sea robins in the family Triglidae are some of the ...

It felt like a Vegas casino at 3 a.m., except instead of full houses, people were flashing fish the color of fire. A voice blared over a loudspeaker something to the effect of, “Could this be the ...