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PORTUGAL – A video captured by divers off the coast of Portugal shows an enormous ocean sunfish swimming slowly past.

Diver Miguel Pereia shot the video off the coast of Santa Maria Island. The video shows several divers watching as if in awe of the massive fish.

The fish towers above all of them.

The sunfish, or the Mola Mola, is known as the heaviest known bony fish in the world. It can weigh up to 5,000 pounds.