A stunning video of a woman swimming next to a giant sunfish off the coast of Cabo San Lucas, Mexico, has gone viral, leaving people amazed.

The ocean sunfish is the world's heaviest bony fish ... The slow-moving fish looks like the "invention of a mad scientist" with a tiny mouth and big eyes that vanish into an even bigger body ...

The ocean sunfish is the world's heaviest bony fish, not including stingrays or sharks. Mola molas can weigh up to 5,000 pounds. The slow-moving fish looks like the "invention of a mad scientist" with ...