Czech beavers built a dam in 2 days, which the authorities had been coordinating for 7 years. Beavers lead an active lifestyle in the water not only in summer, but also in winter. For this, beavers need reservoirs deep enough so that in winter the water in them does not freeze to the very bottom. But, unfortunately, beavers do not always come across such deep rivers. So beavers have to build dams to raise the water level in order to increase or maintain the depth of the reservoir. The construction and repair of dams requires the efforts of many beavers. In addition, beavers work in shifts, and each “shift” consists of a small group of individuals. CT24 TV channel informs that in Czech city of Brdy beavers built in two days a dam, which took the local administration seven years to coordinate. With their hard work, the animals saved the authorities $ 1.2 million. The project to waterlog part of the territories of the Brdy Landscape Park has been under development since 2018. During this time, the mayor's office received all the necessary permits and was ready to start construction. However, it was not needed — the beavers, who settled in the park in 2020, took matters into their own hands and simply built dams in all the right places. "A beaver is capable of building a dam in one, two nights at most. People first need to get permits, decisions on water law, and then see if there is money for it. The Military Forestry Department and the authorities of the Vltava River basin negotiated with each other to create a project and resolve issues related to land ownership. The beavers were ahead of them, saving us 30 million Czech crowns," explained zoologist Jiri Vlcek. Do not think that special beavers live in the Czech Republic, who strive to help sluggish people with the gentrification of the territory. In many parts of the country, fields and railway tracks are flooded because of these animals and their vital activity, and the damage has to be covered from the state budget. The ability to build complex hydrological structures is not the result of brainstorming or the experience of a particular beaver family passed down from generation to generation. Beaver construction art is instinctive. Instincts are based on unconditional reflexes as actions that are inherited. The main irritant that encourages beavers to build dams is the noise of flowing water. In the absence of predators and suitable climatic zone, Czech Republic is an ideal place for beavers. Czech Republic has a program for the protection of European Beavers, which defines three zones regulating their presence - from full protection to compromise solutions and places where shooting is possible. The number of beavers in the Czech Republic is estimated at about 15 thousand individuals. The state covers the damage caused by animals and offers subsidies to repair damaged dams. https://ct24.ceskatelevize.cz/clanek/regiony/bobr-v-brdech-vytvoril-mokrad-usetril-statu-miliony-357585