Alex Mustard / Pod of Indo-Pacific bottlenose dolphins (Tursiops adunctus) swim above a coral reef. Sha'ab El Erg, Hurghada, Egypt. Red Sea.

Alex Mustard / Bottlenose dolphin (Tursiops aduncus) mother baby swimming over a coral reef. Sha'ab El Erg, Hurghada, Egypt. Red Sea.

Richard Du Toit / Bottlenose dolphins (Tursiops aduncus) surfing, porpoising through wave, Western Cape Province, South Africa.

Richard Du Toit / Bottlenose dolphin (Tursiops aduncus) surfing, porpoising thorugh wave, Garden Route, Herold's Bay, Western Cape Province. South Africa.

Jordi Chias / Indo-Pacific bottlenose dolphin (Tursiops aduncus) Safaga, Red Sea, Egypt.

Jordi Chias / Indo-Pacific bottlenose dolphins (Tursiops aduncus) Safaga, Egypt. Red Sea.

Staffan Widstrand / Indo-Pacific bottlenose dolphin (Tursiops aduncus), off the coast of Raja Ampat, Western Papua, Indonesia

Alex Mustard / Pod of Indian Ocean bottlenose dolphin (Tursiops adunctus) swim over a coral reef. Sha'ab El Erg, Hurghada, Egypt. Red Sea.

Jiri Lochman / Tourists meeting Indo-Pacific bottlenose dolphin (Tursiops aduncus) at Monkey Mia, Shark Bay UNESCO Natural World Heritage Site, Western Australia, Australia.

Tony Wu / Indo-Pacific bottlenose dolphin (Tursiops aduncus) with penis extended. Ogasawara / Bonin Islands, Japan.

Tony Wu / Bottlenose dolphins (Tursiops aduncus) surfing. South Africa, Indian Ocean.

Tony Wu / Indo-Pacific bottlenose dolphin (Tursiops aduncus) leaping out of waves, South Africa.