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A beaver tale: Minnesota's long-toothed ecosystem engineers

A beaver walks near the auto tour route at Big Stone National Wildlife Refuge on April 18, 2023. It has dark brown fur and orange-yellow teeth.
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A beaver walks near the auto tour route at Big Stone National Wildlife Refuge on April 18, 2023.

Bill Berg, a retired wildlife biologist for the Minnesota Department of Natural Resources, discusses the history of beaver in Minnesota. This is part of "The Iconic Beaver," a series that investigates the influence of this keystone species in Minnesota. "The Iconic Beaver" is produced by Mark Jacobs.

KAXE's Tuesday Morning Show strives to take an in-depth look at some natural resource-based issues important to Northern Minnesota. Producer Mark Jacobs and hosts Heidi Holtan and John Latimer discuss the problems and highlight some creative solutions.

During the first segment of the Iconic Beaver series, retired wildlife biologist Bill Berg discusses biology and importance of the North American beaver in Minnesota.

Perhaps no animal has been more influential on the history of our region than the beaver. Among its unique characteristics are large teeth that can chew through a tree, layered fur that protects them from the cold and the ability to stay underwater for prolonged periods. Their engineering skills enable them to not only build large lodges to raise their young, but construct dams out of mud and sticks that can alter the local environment. An important resource for local Indigenous people, beaver is used for food and clothing,

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Funding for this project was provided by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR).

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Charlie Mitchell (she/they) joined KAXE in February of 2022. Charlie creates the Season Watch Newsletter, produces the Phenology Talkbacks show, coordinates the Phenology in the Classroom program, and writes nature-related stories for KAXE's website. Essentailly, Charlie is John Latimer's faithful sidekick and makes sure all of KAXE's nature/phenology programs find a second life online and in podcast form.<br/><br/><br/>With a background in ecology and evolutionary biology, Charlie enjoys learning a little bit about everything, whether it's plants, mushrooms, or the star-nosed mole. (Fun fact: Moles store fat in their tails, so they don't outgrow their tunnels every time conditions are good.)