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.

Baleen Whales

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

Thinking of travelling again after everything settles down? One of the companies I work for as a guide and lecturer is Silversea Expeditions.