Mirasol watched a group of striped gazelles struggle up the barren slopes of the talus in search of air. Their dark eyes, fresh from the laboratory, rolled in timeless animal fear. Their coats were scorched, their flanks heaved, their mouths dripped foam. One by one they collapsed in convulsions, kicking at the lifeless Martian rock as they slid and fell. It was a vile sight, the image of a blighted spring.