An curved arrow pointing right. Sightings of dumbo octopuses are rare, so researchers were enthralled when one appeared on their submersible's camera on a deep-sea dive near Hawaii. More from News ...

The dozen or so species that make up Grimpoteuthis are called Dumbo octopuses because of the two large fins—one on either side of the mantle—that protrude like ears. Add in the octopus’s ...