This here I found to be fascinating, probably more so than anything else at the monument. I was on a nature trail that looped through the dunes. The trail was showing how the different animals live and survive in this unique environment. I walked up this dune thinking it no more than some brush eeking out an existence. The sign read that this was the very top of a 25-30 foot tall cottonwood tree. The sands had completely buried most of the tree, but as long as a portion remained exposed, the tree would survive until the dune gradually moved on pushed by the continuing winds that brought it here in the first place. It was hard to picture that I was walking among the top of a tree where birds would normally be.
I didn't see any animals but didn't expect to as they are usually only active at night. Only the tracks left behind from their evening activities.