Dylan Dreyer returns to some favorite islands around the world, including the Amazon River Islands, where red howler and squirrel monkeys are at home in the trees; in the Philippines, unbelievable insects include a tree nymph becoming a butterfly.

Dylan Dreyer returns to Patagonia in South America to learn about amazing animals from sea lions to armadillos that find ways to thrive in the coldest, steepest and most dangerous places on Earth and make them home.