Evolution

But the light of day, under the glaring sun or gray lids of cloud, showed nothing but the elemental sea. There was no forest, no land, no hills. She could smell nothing but salt, and her ears brought her no calls of birds or primates, no herbivorous lowing. The river’s outflow had dispersed now into the greater ocean, and even the other fragments of debris washed down by that torrential storm had dispersed, sailing over the horizon to their own mindless destinies.

The raft itself was diminished.

The anthracothere corpses stuck in the branches of the mango tree had long since slithered away. The last crowder had gone too. Perhaps it had fallen into the sea. The great indricothere had swollen as the bacteria of its huge gut ate their way out toward the light. But the invisible mouths of the sea had been at work on the indricothere, eating into it from beneath. As its meat was steadily stripped away, the huge corpse had imploded, at last sliding beneath the sea.

The anthros had long since eaten all the fruit.

They tried to eat the tree’s leaves, and at first they would be rewarded at least by a mouthful of pleasing moisture that would, for a few heartbeats, ease their thirst. But the tree, uprooted, was dead, and its remaining leaves were shriveling. And, unlike the wretched potbelly, the anthros could not digest such coarse fare, and they lost still more fluid in the watery shit that erupted from their backsides.

Roamer was a small animal built for a life in the nourishing embrace of the forest, where food and water were always plentiful. Unlike a human, whose body was adapted to survive long periods in the open, her body carried very little fat, a human’s main fuel reserve. Things got bad quickly. Soon Roamer’s saliva became thick and tasted foul. Her tongue clung to the roof of her mouth. Her head and neck were very painful, for her skin was shrinking as it dried. Her voice was cracked, and she seemed to have a hard, painful lump in her throat that wouldn’t dislodge no matter how many times she tried to swallow. She and the other anthros would have suffered even more, in fact, if not for the overcast skies that mostly spared them from the glare of the sun.

Sometimes Roamer dreamed. The dead mango would suddenly sprout, its roots reaching out like primate fingers to bury themselves in the unforgiving ocean-soil, the leaves would grow green and wave like grooming hands, and fruit would bloom, huge clusters of it. She would reach for the fruit, even crack it and bury her face in the clear water that mysteriously filled each husk. And here would come her mother and her sisters, fat and full of vigor, ready to groom her.

But then the water would evaporate, as if drying in the harsh sun, and she would find she was gnawing nothing more than a bit of bark or a handful of dead leaves.

Patch came into estrus.

Whiteblood, as the top male of this little lost community, was quick to claim his rights. With nothing else to do and nowhere to go, Whiteblood and Patch coupled frequently — sometimes too often, and the bout would be a perfunctory matter of a few dry thrusts.

In normal times subordinates like the brothers would probably have been able to mate Patch in these early days of her estrus. Whiteblood, with plenty of potential mates to choose from, would have excluded them only when Patch’s peak of fertility approached and the best chance of impregnating her arrived.

This would have been in Patch’s interests too. Her swelling was there to advertise Patch’s fertility to as many males as possible. For one thing, the resulting competition kept the quality of her suitors high without requiring any effort from her. And if all the males in the group mated with her at some time, none of them could be sure who exactly was the father of an infant — so any male tempted to murder an infant to speed up a female’s fertility cycle ran the risk of killing his own offspring. The swellings, her very public estrus, were thus a way for Patch to control the males around her at minimal cost to herself, and to reduce the risk of infanticide.

But on this tiny raft there was only one adult female, and Whiteblood wasn’t about to share. Crest and Left looked on, sitting side by side, chewing on leaves, their comical erections sticking out of their fur. They could stare all they liked at Patch’s refulgent swelling. But every time either of them approached Patch, let alone touched her for the most tentative grooming, Whiteblood would fly into a fury, displaying and attacking the perpetrator.

As for Roamer, she would always be subordinate to Patch, always a stranger. But in these stripped-down conditions she had quickly grown as close to Patch as to one of her own sisters.