Once upon a time, I’d’ve agreed that might be a suitable solution, but now … what with owls … and eagles … and eels with multi-wingspans …

And slithering things don’t even need owls — they can simply climb (well, slither) over walls.

And what about tunnelling things?

What about tunnelling things with a hunger for brains?

No, I think we need domes. Domes that are spherical and go underground as well. We need to knock everywhere down and rebuild inside spherical domes.

But, failing that then, yeah, walls might help. At least against bears and boars and wolves and foxes and Zone 3 dwelling Morlocks, if not squirrels (squirrels can climb). But we could build them so high that even squirrels couldn’t get over perhaps (how high can squirrels climb?)

Yeah … walls — we need walls around our cities. Well, around London at least. And anywhere else I’m likely to go (major metropolises). But not so much anywhere else — places like Manchester, Birmingham, Shitsville … places like that, they don’t really matter. London, Berlin, Amsterdam, Paris, Lisbon, Madrid, Zurich, New York, places like that … they need walls — anywhere with bears (or wolves) within about … ooh … on the same continent really.

It might just be easier to exterminate all the bears (and wolves, etc.) though. We did it here in the UK once before. And that was with crappy old weapons like bows and swords and shit. We have nukes and Agent Orange and stuff these days — how hard could it be?

And walls need constant monitoring and upkeep.

And the animals just keep breeding and coming back.

Yeah … the more I contemplate things, the more it appears you might be on to something: exterminating the animals into (at least local) extinction is a much better long term plan, isn’t it?

Good thinking, that woman!