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The mammals of the open tropical oceans of the world... 

Cetacea: whales and dolphins

Toothed Whales

Stenella longirostris, 'Spinner Dolphin' (Papua New Guinea). This species probably includes many species; as the very least there are many distinct forms around the world. In the middle of the Pacific Ocean, far away from land, I have seen very tiny forms of Spinner Dolphins.

'Bottlenose Dolphins'

The 'Bottlenose Dophin' is now usually considered to be three or even four different species. Two occur across larger areas of the tropics, with the larger 'Common Bottlenose' Tursiops truncatus, being more widespread and also found in deeper more open water. The closer they examine these two species, the less closely related they seem to be.

Tursiops aduncus, 'Inshore (Indo-Pacific) Bottlenose Dolphin'. Usually found in coastal waters, around the Indo-Pacific oceans. 

Baleen Whales

Megaptera novaeangliae, 'Humpback Whale' (Kimberley coast, Australia).

Back to the page on the tropical open oceans

Can't go travelling until everything settles down? Here I am doing a virtual guided walk for Noble Caledonia, and here I am doing other virtual guided walks...