Mahi mahi or dolphin fish, (Coryphaena hippurus), large bull, Caribbean Sea off Isla Mujeres, near Cancun, Yucatan Peninsula, Mexico [Getty Images]

Mahi mahi or dolphin fish, (Coryphaena hippurus), large bull, Caribbean Sea off Isla Mujeres, near Cancun, Yucatan Peninsula, Mexico

Photolibrary Doug Perrine