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A great part of it is instinct: https://www.youtube.com/watch?v=DggHeuhpFvg

I'm no expect but I wouldn't be surprised if there's some level of 'learning' and 'teaching' that goes on in groups of beavers that lead to different types of dam architecture in different regions.

Beavers are really neat to me because they seem like they have the right sort of body type and proclivities to be really expert tool makers. They're one of those species that would probably take over the human ecological niche if the human species just blinked out of existence tomorrow.

People always love to talk about tool-making animals like crows and chimps and that's cool but I've always been fascinated by examples of animals that build complicated and vast structures like beavers or ants and termites. It's interesting to me that we've domesticated animals for so many purposes but not for construction. Like we have domesticated animals for eating (cows), for riding (horses), for self defense/hunting (dogs) pest control (cats) but I can't think of an example of using animals for construction. I guess using grazing animals for trimming grass/scrub is maintenance which is similar.

What I find remarkable about the video I linked to above is that once that beaver has it's Maslo's hierarchy of needs is met it seems to want nothing more than to collect the appropriately sized/shaped stuff to dam anything that resembles a waterway. If we could some how find some way to harness that, if we could engineer a species of animals that we fed and nourished and they would go out in the wilderness and do remediation work for us, it could potentially be so much more sustainable than using heavy equipment or other alternatives and cheaper than using human labour.




I'm still betting on racoons to replace us, but beavers are an interesting entrant in the contest.


I think it's a mistake to assume that any one animal species will replace us.

It's much more likely that visitors to earth in a few million years will encounter beavers, squirrels, raccoons and magpies locked in a complex planetary cold war, with shifting alliances.


Fair. Don't forget the dolphins and cephalopods duking it out in the ocean. (Also I think bears are one of the stronger contenders on land, ahead of squirrels for sure).

Realistically, though, one of them has to be first, if only by a couple thousand years, and then they'll attain global control sufficient to keep the others from gaining significant power. Much like we did. (though actually the ocean is still a viable second sphere of influence).


> Fair. Don't forget the dolphins and cephalopods duking it out in the ocean.

This kind of thing led to some species thinking it was a great idea to walk on land, and a few billion years later, you have humans all over again. Hopefully they'll avoid this stupid mistake in the next go-around.


Honey badgers will be mercenaries for hire.


Millions of years from now? Probably nothing but crabs.




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