Despite being called “sea devils,” manta rays are harmless to humans. Watch this adventurous diver carefully play with mantas at night.
Mantas are known for their "devilfish" appearance because of their horn-shaped cephalic fins. However, they are friendly to people and are only interested in plankton. Alison Teal went free diving with these giant creatures at a depth of 50 feet off the coast of Hawaii, US.