Hidden among coral reefs and colorful marine vegetation, this tiny sea slug reveals an astonishing world of underwater beauty. Despite its delicate appearance, this remarkable marine invertebrate uses ...

Scientists analyzed the DNA of fish in the Galapagos Islands and discovered a colorful new species with white speckles, a study said. Photo from Getty / iStockphoto Swimming through the crystal blue ...

This secretive native of both sides of the Caribbean—from Belize to the British Virgin Islands—hides out on ledges and in caves of reefs up to 140 feet below the surface of the sea. Although not being ...

Divers found colorful sea creatures with “large” eyes off the Canary Islands and Cabo Verde and discovered a new species. Getty Images/iStockphoto Off the coast of Cabo Verde, a diver plunged into the ...

A new blue octopus species, Microeledone galapagensis, was recently discovered near Darwin Island in northern Galápagos.

Nature's natural colors can be breathtaking. Tropical birds are famous for their brightly colored feathers, and many fish species are dazzling. There are gorgeous insects that look like they're ...

An entire world lives deep under the ocean’s surface, far from human notice and as bustling as any city. Animals such as tubeworms and clams live crowded around plumes of methane that bubble up ...