Yep, .bvh files are saved animations...only without the figures. I'm no expert, but I believe you put a figure in your scene then apply the bvh file to it to animate it. I did it once long ago just to see if it would work, and it did. Don't remember how I did it, though. I think there are some bvh files on the Poser 4 content CD and the manual will tell you how to do it.