Beavers build dams to help create a deep pond of quiet water, where they then build their home or lodge. A beaver dam is a marvel of engineering that changes the surrounding landscape. But how did this behaviour evolve? And what were the selective pressures that led to the evolution of dam building?

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Reference:
Plint T, et al. Evolution of woodcutting behaviour in Early Pliocene beaver driven by consumption of woody plants. Sci Rep 2020;10:13111.

Credits:
Doug Jones Nature Videos. https://vimeo.com/303939479
Doug Jones Nature Videos. https://vimeo.com/364380916
James St. John. https://commons.wikimedia.org/wiki/Fi...

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