What eats a giant otter shrew?
The giant otter, Pteronura brasiliensis, is the largest species in the subfamily Lutrinae (the otter subfamily) and even in the family Mustelidae (which also includes weasels, badgers, ferrets, and other mustelids). The male giant otter can reach lengths of nearly 6 feet (1.8 meters). However, in weight, the giant otter can be matched by the sea otter: both can weigh nearly 100 lbs (45 kg).
Adult Giant Otters have no serious natural enemies, beyond human beings and possible and occasional predation by the Jaguar, Cougar, and anacondas. Cubs are more vulnerable, and may be taken by the Black Caiman and other large predators, although adults are constantly mindful of stray young. The Spectacled Caiman is another potential competitor. When in the water, the Giant Otter faces danger from animals that are not strictly preying upon it: the Electric eel and…
Sea otters are the only species in their genus, Enhydra. However, there are thirteen species of otter in the subfamily Lutrinae; these include the Marine otter, the North-American river otter, the Neotropical river otter, the Southern river otter, the Eurasian otter, the Hairy-nosed otter, the Asian small-clawed otter, the African clawless otter, the Congo clawless otter, the Giant otter, the Smooth-coated otter, the Spotted-necked otter, and (of course) the Sea otter.