because they can
There put their butts in the air
yes it is
Flying squirrels have a flap of skin called a patagium that stretches between their front and back legs. When they jump from a height, they spread their limbs, allowing the patagium to catch the air and glide like a parachute. They can steer and control their flight by adjusting the position of their limbs and tail.
Because it's more comfortable than sleeping with their head in the air. 
no
Flying squirrels breathe air with lungs. They really don't fly, the actually glide using a flap of skin. They live in deciduous and coniferous forests.
No, there are lots of male air host(ess?)s, like male nurses.
Yes: small game. Rats, squirrels and small birds.
when they fart the warm air goes into their skin
Squirrels need oxygen, just as humans do, so they breathe in air much the same way as humans do. Squirrel blood cells need oxygen to operate their muscels, bones, and anything else in their body, much the same need for oxygen in humans.
Pollution can harm squirrels through contaminated food sources, water, and air. This can lead to health issues, reproductive problems, and habitat degradation for squirrels. It may also impact their natural behaviors and migration patterns.
it really is a bad idea to eat your air rifle.perhaps you mean"where may i shoot a squirrel with my air rifle,and then eat the squirrel?" in which case ,a good idea would be to look for roadkill squirrels,then you would know there were squirrels in the area.i know they are regarded as a pest,but it is still bad to shoot a female with nursing young.give it some thought.........