Flying Species

They were not uncommon at all in the domain of Qu. At least a dozen worlds sported human-derived flying species of one kind or another. Most resembled the bats or the pterosaurs of the bygone past, dancing through the aether like angels. (Or demons, depending on the point of view.) There were a few bizarre kinds relied on swollen gas glands for floatation as well.

Sadly, most of these creatures were already too specialized to be anything but flyers. They had forsaken their humanity for the conquest of the sky; they had little potential for further radiation beyond their limited roles.

The only exception proved out to be a monkey-like species that flew on wing membranes stretched across the last two fingers. Their advantage was a unique, turbine like heart, artificially developed during the regime of Qu. No other human flyer in the galaxy had such an adaptation. The starfish shaped organ sat in the middle of their chests, directly funneling oxygen from the lungs to the bloodstream in a supremely efficient way. This meant that the Flyers could develop energyconsuming adaptations such as large brains without having to give up their power of flight.

Not that the flyers were going to reclaim their sentience right away. Instead, they literally exploded into skies, filling the heavens with anything from bomber-sized sailors to impossibly fast predators that raced with sound. Their world was pristine and there were plenty of niches to play in. Intelligence could wait a little more.

[...]

Some flying posthumans re-approached sentience in an entirely different way. Without the augmented metabolisms or the gravitational advantages of their siblings on distant planets, they had no choice but to give up their power of flight in order to develop further.

The Hand Flappers were one such species. Their wings, once used for butterfly-like flutters in the unearthly gardens of Qu, had shrunken and reverted back into their manual condition. Their legs were likewise re-adapted, but they bore a splayed awkwardness from their perching ancestry.

Only a singular, and an almost sadistically simple flaw held them back from developing civilization. In the course of their secondary atrophy, the wings of the Hand Flappers had become useless as hands as well. Their flag like appendages were very useful in signaling and mating dances, but they couldn't hurl missiles, construct shelter or even manufacture basic stone tools. All that they could do with their useless hands was to display each others' sexual availability, so the Hand Flappers did just that; flashing and dancing their way to oblivion.


- All Tomorrows: Flyers and All Tomorrows: Hand Flappers