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    9th Sep, 2020
  • Dams built by beavers help in the growth of brown trout in Chile’s remote Tierra del Fuego, which is also the southern tip of South America, a study found.
  • The beaver is a large, primarily nocturnal, semiaquatic rodent.
  • They are the second-largest rodent in the world after the capybara.
  • Beavers are known for building dams, canals, and lodges.
  • Their colonies create one or more dams to provide still, deep water to protect against predators, and to float food and building material.
  • When sites are available, beavers burrow in the banks of rivers and lakes. But they also transform less suitable habitats by building dams.
  • IUCN status: Least Concern

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