With its year-round sun and excellent visibility, the waters of the Caribbean offer some of the best scuba diving in the ...

Adult male Rose-Veiled Fairy Wrasse (Cirrhilabrus finifenmaa) shows off his colors for the ladies. This species is found at the equator in the Indian Ocean, living in the coral reefs of the Maldives ...

When Lorian E. Schweikert, Ph.D., reeled in a hogfish on a fishing trip to the Florida Keys, she noticed something strange after setting it down on the deck of the boat. Hogfish are known for their ...

Climate change is driving some fish into cooler, deeper waters. Now they may be faced with another challenge: how to make sense of a world drained of color. Researchers report that even small ...

Every summer, many rivers across Alaska appear as if they have caught fire. The water turns a deep, almost impossible red as ...

Next time he's vacationing in Hawaii, President Barack Obama might just bump into his new namesake: a pink, yellow and blue coral-reef fish that researchers have named in the president's honor.

Step inside a fish farm where bettas are not just surviving, but thriving. From vibrant colors to impressive numbers, the ...

As light shines steadily on a silver slip of a fish, minuscule dots on the fish start flashing: blue, yellow, blue, yellow. The bodies “do not glow like luminous fish,” Masakazu Iwasaka, an ...