A beaver may seem like a harmful animal, but in fact his diligence and desire to transform landscapes for himself are so strong that they are more than successful. What kind of landscape does a beaver need? Swampy. With bushes that have delicious bark, with a deep enough reservoir in which you can stash branches for the winter until spring. How is this beneficial to nature? For example, during one year, a hectare of wetlands absorbs 7-15 times more carbon dioxide from the air than a hectare of forest: 550-1800 kg; and emits 7-15 times more oxygen: 260-700 kg. Numerous mollusks and aquatic insects settle in the spill created by beavers, which in turn attract muskrats and waterfowl. The fish, once in favorable conditions (and the beaver deepens the reservoir and creates a network of channels), begins to multiply faster. Trees felled by beavers serve as food for hares and many ungulates, which gnaw bark from trunks and branches. The sap flowing out of the eroded trees in spring is loved by butterflies and ants, followed by birds. Muskrats enjoy the protection of beavers, and muskrats often live in their huts with their owners. Their dams also help purify the water, reducing its turbidity - silt is trapped in them.