Good comment @donttread. Have you seen this from Mr. Hanson who is also smart? Be sure to view it.
'Beavers were responsible for most of the farmland in the West @2:46-2:58 and without beaver dams there are huge areas of land left with less water and hundreds of species left without a habitat.'
"Why BEAVERS Are The Smartest Thing In Fur Pants"
https://www.youtube.com/watch?time_c...ature=emb_logo
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How Dangerous Is the Beaver?
BY NATHAN CHANDLER DEC 6, 2019
But the truth is that beaver attacks make great headlines for one reason — they are incredibly rare.
"Beavers in the wild are not considered dangerous," emails Michael Callahan, president of the Beaver Institute, which works to reduce beaver-human conflicts using non-lethal methods. "Unless they are threatened, the most aggressive behavior beavers will exhibit is slapping their paddle tail on the water to create a loud noise."
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What Are Beavers Really Like?
Beavers are the largest rodents in North America, often weighing between 35 and 65 pounds (16 and 30 kilograms). Although they're clumsy on land, they're much more graceful in the water, able to swim about 6 mph (10 kph). Thanks to their larger-than-average lungs, they can hold their breath for around 15 minutes, which means they can swim perhaps half a mile (0.8 kilometer) before they need to resurface for air. They spend their days building dams and lodges (for protection against predators and to store food) not dreaming up ways to dismember humans.
Do Beavers Help or Hurt the Environment?
The results are often a win-win for both beavers and other creatures. "Beavers are tremendously beneficial to the environment. They are North American 'keystone species' meaning their presence on the landscape increases biodiversity," says Callahan. "Beavers build dams to turn streams into ponds. The new habitats created support innumerable plant, insect, fish and animal species, including salmon and other endangered species."
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https://animals.howstuffworks.com/mammals/beaver.htm