The ocean sunfish, or mola mola, is a strange creature that more closely resembles an alien than other fish. With its oddly symmetrical body and truncated shape, the mola mola is actually one of the largest fish in the world. In fact, it is widely considered the heaviest bony fish and can weigh up to 5,000 pounds. Not bad for something that lives of a diet that primarily consists of jellyfish.
To get a sense of how big the sunfish really are, take a gander at the video below. Erik van der Goot said he and his friends were diving near the island of Gozo on the Maltese archipelago when they saw this massive mola mola. Covered with barnacles and followed by a small school of fish, the creature utterly dwarfed the divers.
“We rolled off the inflatable, dropped down and there it was,” Goot said in the video’s description.
The diver then attempted to get video of the giant fish from all sides as it slowly sauntered along. Goot concluded that the experience was “once-in-a-lifetime.”