National Geographic magazine recently published an article about the rise of beavers in Stockholm. It's worth a read.
I had not known that beavers were last seen in the capital in the 1790's. In fact, beavers were declared extinct in the whole country in 1871.
Thankfully, they were successfully reintroduced in the 1920's, and within the past decade, they've made their way to the big city.
I'm pretty sure they won't make it out to the archipelago, however. At least, I hope not, since my house is made entirely of wood!