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The Eurasian otter's diet mainly consists of fish. [13] Fish is its most preferred choice of food in Mediterranean and temperate freshwater habitats. [14] During the winter and in colder environments, it also feeds on amphibians, [15] [16] worms, clams, crustaceans, insects, eggs, birds and sometimes small mammals, including young European beavers.
Eurasian otters must eat 15% of their body weight each day, and sea otters 20 to 25%, depending on the temperature. In water as warm as 10 °C (50 °F), an otter needs to catch 100 g (3.5 oz) of fish per hour to survive.
Eurasian otter Lutra lutra (Linnaeus, 1758) coasts of Europe, many parts of Asia, and parts of northern Africa: Size: Habitat: Diet: NT Hairy-nosed otter Lutra sumatrana (Gray, 1865) Southeast Asia: Size: Habitat: Diet: EN
The North American river otter (Lontra canadensis), also known as the northern river otter and river otter, is a semiaquatic mammal that lives only on the North American continent throughout most of Canada, along the coasts of the United States and its inland waterways. An adult North American river otter can weigh between 5.0 and 14 kg (11.0 ...
Otters are social animals, and in the wild, live together in groups as big as 10 to 100 individuals. A popular animal exhibit at the zoo, people love to watch these aquatic mammals swim,
Diet: Primarily eats fish, as well as amphibians and crustaceans [56] LC Unknown [56] Southern river otter. L. provocax (Thomas, 1908) Southern Chile and Argentina: Size: 57–70 cm (22–28 in) long, plus 35–46 cm (14–18 in) tail [57] Habitat: Inland wetlands, coastal marine, neritic marine, and intertidal marine [58]
The Eurasian otter and the smooth-coated otter [11] are carnivorous semiaquatic mammals located in the marshes and rivers whose diets consist of primarily fish, amphibians, crustaceans, insects and birds, but their populations have seen a decline since the 1970s. [12]
The Neotropical otter's diet consists mostly of fish and crustaceans making up 67% and 28%, respectively, of its total diet. The otter will also occasionally feed on mollusks and small mammals, as well as birds, large insects and fruits. [14] [15] In areas where fish and crustaceans are scarce, aquatic insects, such as dobsonfly larvae, can ...