Researchers descended more than 35,700 feet (10,900 meters) below sea level to collect biological samples that revealed surprising diversity. And also trash.

New species of shark, sea butterfly, mud dragon, bamboo coral, water bear, octocoral, and shrimp were just some of the marine life findings.

Experts have announced a massive discovery of 866 new marine species – some of them sound straight out of science fiction such as sea butterflies, mud dragons, sea spiders