Since humans and mice share 99% of their genes, then by the reasoning of evolutionary scientists,the human had to have evolved from the mouse. Thus, the common ancestor could have been a flying mouse. I'll use the same procedure that they use to describe how an ape turned into a human.
"Over time", the mouse dropped its wings and tail, and became fat. Then realizing that the food on the ground was too fattening, the mouse "naturally selected" food that grew on the bushes. So gradually, its legs stretched out, its arms grew longer so it could reach for the food on the bushes. But unfortunately, this particular food was too big for its mouth, so again, the mouse developed genes that gave it a bigger mouth and stomach so it could digest the food on the bushes.
After several hundred thousand years, the mice grew tired of the food on the bushes because by then, they began to develop the ability to think and their appetites began to increase.The fruit on the higher trees looked more appetizing to them. They had also developed vocal chords by then and began to quibble among themselves about whether or not they wanted to use their willpower to naturally select better food. The ones who yelled the loudest won out . So their genes changed again and their arms and legs grew longer and longer until they could reach the food on higher trees. Now they felt mighty!
But unfortunately, that didn't happen to all the mice. In fact, most of them just remained rodents and to this day are still scurrying around on the ground looking for food. They are fortunate that they didn't develop the capacity for jealousy so they could be content when their ancestors changed into humans and they didn't. It makes one wonder who's better off? The mice of today, or their ancestors who turned into humans. ;-)
"Over time", the mouse dropped its wings and tail, and became fat. Then realizing that the food on the ground was too fattening, the mouse "naturally selected" food that grew on the bushes. So gradually, its legs stretched out, its arms grew longer so it could reach for the food on the bushes. But unfortunately, this particular food was too big for its mouth, so again, the mouse developed genes that gave it a bigger mouth and stomach so it could digest the food on the bushes.
After several hundred thousand years, the mice grew tired of the food on the bushes because by then, they began to develop the ability to think and their appetites began to increase.The fruit on the higher trees looked more appetizing to them. They had also developed vocal chords by then and began to quibble among themselves about whether or not they wanted to use their willpower to naturally select better food. The ones who yelled the loudest won out . So their genes changed again and their arms and legs grew longer and longer until they could reach the food on higher trees. Now they felt mighty!
But unfortunately, that didn't happen to all the mice. In fact, most of them just remained rodents and to this day are still scurrying around on the ground looking for food. They are fortunate that they didn't develop the capacity for jealousy so they could be content when their ancestors changed into humans and they didn't. It makes one wonder who's better off? The mice of today, or their ancestors who turned into humans. ;-)