Normally, the blue-ringed octopus is brown or cream in colour, blending easily with rocks and sand. But when disturbed, it ...

Nighttime underwater photos show fish hanging out with jellyfish and anemones — perhaps seeking their protection.

Photos taken by blackwater divers offered a new glimpse into the early life stages of marine fishes and their interactions ...

Off the coast of Papua New Guinea, a “dwarf”-like sea creature with spotted eyes swam around a reef. It darted into a nearby coral as a shadowy figure approached, but its hiding spot wasn’t quite ...

Artemis is the “goddess of the Moon and the hunt in Greek mythology,” researchers said, and the changing shell shapes of the new species is likened “to the moon’s waxing and waning.” The species has ...