We could twitch our ears, prick them up and flatten them down at will.

And we could scratch between our shoulders with ease.
We could throw stones with our feet.

I have done it many a time.

And for that matter, I could keep my knees straight, bend forward from the hips, and touch, not the tips of my fingers, but the points of my elbows, to the ground.

And as for bird-nesting--well, I only wish the twentieth-century boy could see us.