Doug Perrine / Rough-toothed dolphin (Steno bredanensis) French Polynesia, South Pacific Ocean, captive release, digital composite

Doug Perrine / Rough toothed dolphin {Steno bredanensis} Hawaii, Pacific

Norbert Wu / Rough-toothed Dolphin (Steno bredanensis) steals fish from fishermen's lines, Hawaii

Flip Nicklin / Rough-toothed Dolphin (Steno bredanensis) underwater portrait, Hawaii

David Fleetham / Rough-toothed dolphin (Steno bredanensis), with fish in its mouth, Hawaii.

David Fleetham / Rough-toothed dolphin (Steno bredanensis), adult and calf, Hawaii.

David Fleetham / Rough-toothed dolphin (Steno bredanensis) adult and calf, Hawaii.

Martin Camm / Carwardine / Illustration of Rough-toothed dolphin (Steno bredanensis), Delphnidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Rough-toothed dolphin (Steno bredanensis), dive sequence in profile (Wildlife Art Company).

Doug Perrine / Two Rough-toothed dolphins (Steno bredanensis) off Keauhou, Kona, Hawaii

Doug Perrine / Rough-toothed dolphins (Steno bredanensis) off Keauhou, Kona, Hawaii.

Doug Perrine / Rough-toothed dolphins ( Steno bredanensis) off Keauhou, Kona, Hawaii.