Juan Carlos Munoz / Piebald / Commerson's dolphin (Cephalorhynchus commersonii) entering the water after a jump. Deseado River, Puerto Deseado, Patagonia, Argentina, Nov 2008

Doug Perrine / Piebald / Commerson's dolphins {Cephalorhynchus commersonii} captive, digital composite Occurs southern South America

Todd Pusser / Two Piebald / Commerson's dolphin {Cephalorhynchus commersonii} Falkland Islands, Atlantic Ocean

Bryan and Cherry Alexander / Commerson's dolphins (Cephalorhynchus commerson) foraging in the surf on the beach at Saunders Island, Falkland Islands.

Juan Carlos Munoz / Three Piebald / Commerson's dolphins (Cephalorhynchus commersonii) surfacing in the Deseado River. Puerto Deseado, Patagonia, Argentina, Nov 2008

Juan Carlos Munoz / Cameraman filming a Piebald / Commerson's dolphin (Cephalorhynchus commersonii) porpoising. Deseado River, Puerto Deseado, Patagonia, Argentina, Nov 2008

Gabriel Rojo / Commerson's / Piebald dolphin (Cephalorhynchus commersonii) surfacing, Ria de Puerto Deseado Nature Reserve, Santa Cruz Province, Patagonia, Argentina, December

Gabriel Rojo / Commerson's / Piebald dolphin (Cephalorhynchus commersonii) surfacing, Ria de Puerto Deseado Nature Reserve, Santa Cruz Province, Patagonia, Argentina, December

Gabriel Rojo / Two juvenile Commerson's / Piebald dolphin (Cephalorhynchus commersonii) surfacing, rare gray color pattern, with tourists on dolphin watching boat, Ria de Puerto Deseado Nature Reserve, Santa Cruz Pr...

Gabriel Rojo / Juvenile Commerson's / Piebald dolphin (Cephalorhynchus commersonii) surfacing, rare gray color pattern, Ria de Puerto Deseado Nature Reserve, Santa Cruz Province, Patagonia, Argentina, December

Pete Oxford / Three Piebald / Commerson's dolphins (Cephalorhynchus commersonii) just below the surface off of Port Howard, Falkland Islands

Pete Oxford / Piebald / Commerson's dolphin (Cephalorhynchus commersonii) at surface off of Port Howard, Falkland Islands

Pete Oxford / Two Piebald / Commerson's dolphins (Cephalorhynchus commersonii) at surface off Port Howard, Falkland Islands

Pete Oxford / Piebald / Commerson's dolphin (Cephalorhynchus commersonii) at surface, off of Port Howard, Falkland Islands

Pete Oxford / Commerson's Dolphin (Cephalorhynchus commersonii), Port Howard, Falkland Islands

Pete Oxford / Commerson's Dolphin (Cephalorhynchus commersonii) surfacing, Port Howard, Falkland Islands

Pete Oxford / Commerson's Dolphin (Cephalorhynchus commersonii) group surfacing, Port Howard, Falkland Islands

Hiroya Minakuchi / Commerson's Dolphin (Cephalorhynchus commersonii) showing teeth, aquarium, Japan

Hiroya Minakuchi / Commerson's Dolphin (Cephalorhynchus commersonii) aquarium, Japan

Hiroya Minakuchi / Commerson's Dolphin (Cephalorhynchus commersonii) mother and calf, aquarium, Japan

Hiroya Minakuchi / Commerson's Dolphin (Cephalorhynchus commersonii) mother and nursing calf, aquarium, Japan

Doug Perrine / Piebald / Commerson's dolphins {Cephalorhynchus commersonii} captive, digital composite Occurs southern South America

Doug Perrine / Commerson's dolphins {Cephalorhynchus commersonii} captive, digital composite Occurs southern South America

Doug Perrine / Piebald / Commerson's dolphins {Cephalorhynchus commersonii} captive, digital composite Occurs southern South America

Doug Perrine / Piebald / Commerson's dolphin {Cephalorhynchus commersonii} captive, digital composite Occurs southern South America

Doug Perrine / Piebald / Commerson's dolphin {Cephalorhynchus commersonii} captive, digital composite Occurs southern South America

Todd Pusser / Piebald / Commerson's dolpin {Cephalorhynchus commersonii} Falkland Is

Todd Pusser / Piebald / Commerson's dolpin {Cephalorhynchus commersonii} Falkland Is

Eric Baccega / Piebald / Commerson's dolphin swimming, Kerguelen Island, Sub-antarctic

Ben Osborne / Piebald / Commersons dolphin {Cephalorhynchus commersonii} surfing through wave, Falkland Is

Martin Camm / Carwardine / Illustration of Commerson's dolphin / Skunk dolphin / Piebald dolphin (Cephalorhynchus commersonii), Delphinidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Commerson's / Skunk / Piebald dolphin (Cephalorhynchus commersonii), Delphinidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Commerson's / Skunk / Piebald Dolphin (Cephalorhynchus commersonii), dive and jump sequence in profile (Wildlife Art Company).

Yva Momatiuk & John Eastcott / Commerson's Dolphin (Cephalorhynchus commersonii) leaping in sheltered bay along sandy coastline of East Falkland Island, Falkland Islands

Hiroya Minakuchi / Commerson's Dolphin (Cephalorhynchus commersonii) surfacing, Falkland Islands

Hiroya Minakuchi / Commerson's Dolphin (Cephalorhynchus commersonii) breathing, Falkland Islands