For thousands of years, an ocean of green and gold grasses covered North America, providing a perfect home for huge bison and tiny, barking prairie dogs. But as farming and ranching took over the land in the nineteenth century, the vast prairies slowly disappeared, taking many of the native plants and animals with them. Then, in the late 1980s, an amazing discovery was made in northern Mexico. Scientists found a thriving patch of grassland where prairie dogs still barked and played. Realizing how deeply the prairie dogs helped the entire ecosystem survive, the scientists set out on an urgent mission to protect this land and bring the vanished animals back. Through a catchy cumulative song and fascinating facts, you will discover the power of nature and meet the dedicated people fighting to keep the beautiful North American grasslands healthy and alive.