I came eye to eye with a fox eating roadkill in the side of the road, i did go to the far lane as there was no traffic on the highway, and the guy stayed where i wanted him to stay.
Personally i have not hit any animals since i in the mod 90ties compacted a badger under my car ( doing 110 kmh on the 80 kmh highway at 4 in the morning on my way home from work ) and that owl that messed up the telescopic antenna on my Opel hatchback in a way i have otherwise only seen in roadrunner cartoons.
You don't avoid squirrels- better to just drive straight and let them avoid you. I've squashed just a few since I started doing that about ten years ago- seems to work
I had something unusual cross my path today too: the local Cop helping a very slow very old lady get from her car to the grocery store Gotta love it here