 What is the relationship between the Hairy people and the Furry people?
THE HAIRY ONES by BASIL WELLS Marooned on a world within a world, aided by a slim girl and an old warrior, Patrolman Sisko Rolf was fighting his greatest battle—to bring life to dying Mars. But here in the cavern world, thirty-seventh in the linked series of vast caves that underlie the waterless wastes of Mars, the reflected waves of sound were of little value. They know these caverns better than.... Without a pressure mask on the surface of Mars an Earthman was licked. Here at least the air was thick enough to support life, and somewhere nearby the outlaws who smuggled their precious contraband water into the water-starved domes of North Mars lay hidden. The outlaw headquarters might be close ahead, headquarters where renegade Frogs, Venusians from the southern sunken marshes of Mars, and Earthmen from dusty North Mars, concealed their precious hoard of water from the thirsty colonists of North Mars. The weird globe was divided equally into hemispheres, and as the tiny world turned between its confining columns a green, lake-dotted half alternated with a blasted, splintered black waste of rocky desert. And the barrier became a jumbled mass of roughly-dressed stone slabs, from whose earth-filled crevices sprouted green life. This mysterious world that floated above the cavern floor might be their headquarters. "But, Mark," the voice that was now unmistakably feminine argued, "he wears the uniform of a patrolman." "You know their leader, Cannon, wanted you.
 The Furry people hunt the Hairy, because they were once enslaved by them.
 The Furry people hunt the Hairy, because they were once enslaved by them.  The Hairy people rule over the Furry, and they are rebelling against them.  The two factions have disputes over the land  The Furry people have a disdain for the Hairy, and frequently attack them.