Pteronura brasiliensis
Larger otter in the world. Present in main hidrographic basins of South America. Particularly common in Amazonia and Pantanal Wetlands.

Picture taken in Rio Vermelho, Southern Pantanal of Brasil.



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The giant otter or giant river otter (Pteronura brasiliensis) is a South American carnivorous mammal of the weasel family, Mustelidae. Atypical of mustelids, the giant otter is a social species, with family groups typically supporting three to eight members. The giant otter ranges across north-central South America; it lives mostly in and along the Amazon River and in the Pantanal.
Order: Carnivora > Family: Mustelidae > Genus: Pteronura > Species: Pteronura brasiliensis