Adult Pacific white-sided dolphin (Lagenorhynchus obliquidens) surfacing in the calm waters of the inside passage, Southeast Alaska, USA.

pacific white sided dolphin lagenorhynchus obliquidens porpoise cetacea cetacean mammal warm blooded odontocete southeast alaska ocean animal delphinidae odontoceti oceanic northern hemisphere water sea marine aquatic sealife sea life wild wildlife swimming one alone single solitary individual streamlined surfacing dorsal fin surface alaskan north america north american united states