Daily Jim pic 27

Quite a few people don’t know this, but black-tailed prairie dogs will whistle sharply and fiercely when they sense danger.

Even fewer people know this, but they do so with the old country-boy trick of placing a blade of grass in a small gap between thumbs pressed together and blowing strongly. It is one of those remarkably useful things that you learn in adolescence, like making fart noises read more