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Around 16 million years ago, a dolphin giant cruised the depths of its watery domain. But unlike most modern dolphins, its home wasn’t an ocean; it lived in a freshwater lake in the Peruvian Amazon.
Researchers at the University of Zurich estimated that the 16-million-year-old fossil was more than 11 feet long and is said to be the longest freshwater dolphin ever found.
September 14, 2024 at 8:00 AM. Bones from an Amazon pink river dolphin are embedded in dried mud along the banks of Lake Tefé in Tefe, Brazil, on Oct. 31, 2023. More than 200 river dolphins died ...
Amazon river dolphin. The Amazon river dolphin (Inia geoffrensis), also known as the boto, bufeo or pink river dolphin, is a species of toothed whale endemic to South America and is classified in the family Iniidae. Three subspecies are currently recognized: I. g. geoffrensis (Amazon river dolphin), I. g. boliviensis (Bolivian river dolphin ...
The bottlenose dolphin is a toothed whale in the genus Tursiops.They are common, cosmopolitan members of the family Delphinidae, the family of oceanic dolphins. [3] Molecular studies show the genus contains three species: the common bottlenose dolphin (Tursiops truncatus), the Indo-Pacific bottlenose dolphin (Tursiops aduncus), and Tamanend's bottlenose dolphin (Tursiops erebennus).
River dolphins are a polyphyletic group of fully aquatic mammals that reside exclusively in freshwater or brackish water. They are an informal grouping of dolphins, which itself is a paraphyletic group within the infraorder Cetacea. Extant river dolphins are placed in two superfamilies, Platanistoidea and Inioidea.
Eleanor Nash. August 25, 2023 at 9:06 AM. Scientists determined that bottlenose dolphins found close to the shore off South Carolina and much of the east coast are a different species than those ...
The origins of the program date back to 1960, when a Pacific white-sided dolphin was acquired for hydrodynamic studies seeking to improve torpedo performance. [1] The aim was to determine whether dolphins had a sophisticated drag-reduction system, but the technology of the day failed to demonstrate that dolphins have any unusual capabilities in this respect.