Boaters got the chance to spot sea creatures off the coast of California, and onlookers are calling the sightings a ...

While green isn’t an unusual color in nature, beautiful green animals are somewhat rare and exotic. Many green-colored ...

Beneath the ocean’s surface lies a world bursting with color—far more vibrant than many of us realize. From neon-bright fish to spotted crustaceans, some of the most colorful sea animals on ...

This previously unknown symbiotic relationship helps keep methane—a major greenhouse gas—trapped in the ocean.

The beautiful sea angel (left) is actually a carnivore, and eats its relative the sea butterfly—also known in Russian as the sea devil.

Here's how Jorge the sea turtle prepared for the improbable journey—decades after he was found tangled in a fishing net off ...

CORPUS CHRISTI, Texas — It's the time of year when Texans head to the coast for a little sun, sand and surf. Most would just as soon skip seeing any sea creatures -- unless they're fried with a ...

Devon Wildlife Trust said Felix, 15, and her father Ashley found the "beautiful" rainbow sea slug close to Wembury, near Plymouth, on Friday, in what was believed to be the first time the animal ...

Thousands of 'otherworldly' animals live beneath the ocean in an area that may be mined for metals.

20 Beautiful, Bizarre, Dramatic Marine Photos Shortlisted For Ocean Photographer Of The Year By Cecilia Rodriguez, Senior Contributor.

Thousands of beautiful but dangerous sea creatures are washing up on parts of the US coast — bungling plans for many holiday-makers gearing up for the annual spring break festivities.