Riya made her way up the path across the foothills, conscious of her shame. The green plain below her was dotted, two by two, with the figures of her people. It was spring, and Time. Only she was alone. There was a special significance in the fact that she was here on this path in this season. The plains on either side of the brown river were her people's territory. During the summer, the couples ranged over the grass until the dams were ready to drop their calves. Then it became the bulls' duty to forage for their entire families until the youngsters were able to travel south to the winter range. Through the space of years, the people had increased in numbers, the pressure of this steady growth making itself felt as the yearlings filled out on the winter range. It had become usual, as the slow drift northward was made toward the end of winter, for some of the people to split away from the main body and range beyond the gray mountains that marked the western limits of the old territories. Since these wanderers were usually the most willful and headstrong, they were regarded as quasi-outcasts by the more settled people of the old range. But--and here Riya felt the shame pierce more strongly than ever--they had their uses, occasionally. Preoccupied in her shame, she involuntarily turned her head downward, anxious that none of the people be staring derisively upward at the shaggy brown hump of fur that was she, toiling up the path. She was not the first--but that was meaningless. That other female people had been ugly or old, that the same unforgotten force that urged her up the mountain path had brought others here before her, meant only that she was incapable of accepting the verdict of the years that had thinned her pelt, dimmed her eyes, and broken the smooth rhythm of her gait. In short, it meant that Riya Sair, granddam times over, spurned by every male on the old range, was willing to cross the gray mountains and risk death from the resentful wild dams for the thin hope that there was a male among the wildlings who would sire her calf. She turned her head back to the path and hurried on, cringing in inward self-reproach at her speed. Except for her age, Riya presented a perfect average of her people. She stood two yards high and two wide at the shoulders, a yard at the haunches, and measured three and a half yards from her muzzle to the rudimentary tail. Her legs were short and stumpy, cloven-hooved. Her massive head hung slightly lower than her shoulders, and could be lowered to within an inch or two of the ground. She was herbivorous, ruminant, and mammalian. Moreover, she had intelligence--not of a very high order, but adequate for her needs. From a Terrestrial point of view, none of this was remarkable. Many years of evolution had gone into her fashioning--more years for her one species than for all the varieties of man that have ever been. Nevertheless, she did have some remarkable attributes.