Kangaroos can be clumsy.

The other day we went for our Sunday bushwalk (or bush stalk, depending how energetic we are). A little way along a track we found a dead kangaroo. There was no sign of blood or damage to it, and it didn't even have any flies or ants on or near it, so it must have died quite recently before we arrived. I suspected its neck was broken from the angle of it.
Upon further looking and thinking, we suspect that it must have come bounding down the hill along the track and messed up its footing as it tried to jump over a log, as it's bottom jaw was all exposed and the bush it was in was squashed down a bit. It was pretty skinny and old looking so I think it just got unlucky and bashed its head on the big long next to the track and broke its neck.
It was quite bizarre. P dragged it over to the other side of the big log so it could be a meal for the many little beasties that do that job in the bush. It was really odd to see a whole 'roo, no blood or obvious damage. Poor thing.