How Beavers Evolved to Build Dams

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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.

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#beaver #beaverdam #evolution

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Please like, comment and subscribe if you enjoy the video! Thanks for watching!

frankenscience

Years ago I spent a summer in a cottage on it's own large lake up in Northern Ontario. There was a beaver dam at one end with a pretty big lodge nearby inhabited by one enormous beaver. I spent the first days paddling around in an old wooden canoe and trying to get close to the beaver, who didn't like that at all. Lots of slapping of the water with the tail if I got too near. Then one morning I got up and walked down to the edge of the lake and saw that the canoe, which I had pulled up onto the gravelly shore, had an almost perfectly circular hole gnawed out of the bottom.

cerberus

Really appreciate the calm delivery and non-noisy editing, I feel like learning and new information is better received that way, you know... like in a classroom. Good work!

oswaldocampista

Beavers are amazing creatures. Dam building alone is quite breathtaking when presented with all of the positive effects it has on the surrounding ecosystem. Marvelous.

aiyalidat

Easy. The master builder deity gave them the power to engineer the forest : D

matrix

The raw amount of fascinating information coupled with the narrator's soothing, calm voice is an unbelievably therapeutic combination.

rabidkoalaz

Fantastic video, and how you use youtube to perfection. 8 minutes of pure, interesting information, instead of a TV program which has a specific time period. Great work here.

matt

Dam! Beavers are so fascinating. Really good video :)

kimho

This is why I pay Internet
High quality content right here

gonzalogutierrez

Beavers will sometimes dig channels out from the pond giving safe ways to reach more trees. Their predators can't swim very well.

ryuuguu

Beavers are too cool! So happy you included that they get triggered by the sound of running water lol!

Hyumanity

Your channel is great. Keep up the good work and I'm sure it will pay off. 👍

Narbris

Great video. I loved the content, the visuals, and the delivery. I look forward to seeing more!

chagu

2:23 Well, maybe there are more than two. Back in 1946 Canadians sent 10 beaver couples for a fauna enrichment experiment to Tierra del Fuego and they have been wreaking havoc ever since and at some point they are going to diverge from Castor Canadensis, if that hasn't already happened considering how we haven't been able to exterminate the pests.

P.s.: If you ever feel like helping nature and get yourself a nice pelt at the same time, hop on up to Tierra del Fuego and get those *dammed* beavers.

eleSDSU