An exasperated mother sends her boisterous children outside—but their games take them further than she could have imagined!Brother and sister soon leave their garden behind, venturing through breathtaking landscapes, crossing deserts, climbing mountains, sailing the seas, and exploring jungles. Along the way, they encounter animals from black bears and scorpions to barracudas and orangutans, and many that are endangered or nearly extinct.Blending storytelling, adventure, and information, Play Outside! highlights the beauty and fragility of the natural world and celebrates our human connection to it. Readers can search for more than 250 animal species hidden in the art, each one featured in an illustrated index that shows where in the world they can be found and highlights their level of vulnerability to extinction.