Wings: evolutionary future?

[UnknownH]

If theres some enviormenttal change, needing us to travel without walking (which is proabably impossilbe) then yah i think we would have wings... or gorw ridicously strong legs and jump from far distances o.O

Then again evlolution is iffy, like if there is a coloney of frogs or whatever and there is no male, then some how there is a male, but how do they produce a male... does one of them some how change >
Like if we have to move from the land to up in the air we might grow them, or figure out some kind of mechanical wings.