Researchers found a rare octopus nursery off the coast of Costa Rica

Researchers found Muusoctopus nursery grounds on a low-temperature hydrothermal vent off the shore of Costa Rica. (Schmidt Ocean Institute)

Scientists working off the coast of Costa Rica say they've discovered the world's third known octopus nursery.

The international 18-person research team found the site nearly 2 miles below sea level and believe that in the process they may have also discovered a new species of Muusoctopus, a genus of small to medium sized octopus lacking an ink sack.