So I was exploring skyrim, as we all do and I climbed the hard way up the back of a mountian, inching my way up by jumping until I get to the top.
on my way down the other side which is rather steep I notice a fox who is also trying to get down the steep mountain side when suddenly he begins to roll, then I hear a yelp and see him roll dead down the mountain side. it was actually a rather sad thing to see for i am friendly to the foxes in the game, and only kill animals if they are trying to kill me.
but yeah just wondered if anyone else has seen an animal die by their own actions.

The closest thing I've seen to that would probably be the rabbits that I see hopping around underwater every now and then. They never seem to drown, though.

Not an animal but I seen a Dwarven spider commit accidental suicide while fighting falmer on a spiral walkway, it did that leap attack and flew right off the ledge and fell a good 200 feet then exploded.

I see it all the time. mostly by wolves running off a 2 inch hill and flying 100 feet into the air.