If you ever travel to the Maldives, you might be able to see a rainbow without any rain. Meet the newly discovered rainbow-colored fish named the rose-veiled fairy wrasse in the Maldives' "twilight ...

Reef fish in different oceans often develop similar color patterns because evolution explores the same set of biological ...

A saltwater aquarium is an exotic and striking addition to the home. But more than a striking piece of furniture, it’s a living habitat that is both enthralling and engaging thanks to the vibrant ...

Rising human exploitation of the oceans is pushing ever further into regions that scientists increasingly suspect are full of conscious life. New research into creatures from sperm whales to octopuses ...

Certain small fish, like pearlfish, have evolved a bizarre survival strategy by taking refuge inside sea cucumbers. These fish enter through the anus, finding protection from predators within the ...

SAN DIEGO (FOX 5/KUSI) — Researchers have discovered a new species of tropical fish during an expedition to remote islands off the Pacific coast of Mexico. Named the Halichoeres sanchezi, or the ...