Some people are near- or farsighted - I'm thorn-sighted. The thorns on the rose are in really sharp definition for me, the rose petals a little fuzzier.
I have seen one shrike occupy himself for hours in sticking up on thorns, a number of small fishes that the fishermen had thrown on the shore. The fishes dried up and decayed.
Sculptures created from found materials like ice and thorns, driftwood, and even bleached kangaroo bones all presuppose that artistic design will yield to the cycles of time and climate, whether over an hour or a decade.