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An Evolutionary History of Dolphins

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Lagenorhynchus obscurus

dusky_dolphin.jpg

Lagenorhynchus obscurus, better known as the Dusky Dolphin, is slightly smaller than most members of the Delphinidae family. They mostly live around New Zealand, but they are also found around South America and South Africa. Dusky Dolphins travel in large pods, and are especially recognizable by their unique two-toned dorsal fins. Because of their acrobatic skill, they are favorites among dolphin enthusiasts.

dusky_dolphin_3.jpg

Scientific Classification

Domain Eukaryota

All living things containing cells with organized nuclei

Kingdom Animalia
Multicellular, heterotrophic eukaryotes that do not have cell walls
Phylum Chordata
Animals with backbones (along with a few related invertebrates)
Class Mammalia
Vertebrate animals with mammary glands
Order Cetacea
Whales, dolphins, and porpoises

Family Delphinidae

Oceanic dolphins

Genus Lagenorhynchus

Six closely related Cetacea

Species L. obscurus

The Dusky Dolphin