the zebra is walking
zebra in an enclosure
two zebras in an enclosure
zebra walking in front of the camera
zebra walking in front of another zebra
line of grey poles in back of zebras
poles with black and red markings
flat and dry gray ground with pebbles 
overlapping gray boulders in back of poles 
The pipes behind the zebras.
The gray wall behind the poles.
a couple of zebras walking through the dirt near poles