Explore the fascinating world of animals that start with X! Xenops, a small bird found in Central and South America, showcases exquisite plumage and unique foraging habits. Xerus, also known as African ground squirrels, captivate with their intricate tunnel systems and social behaviors. Discover these and more intriguing creatures beginning with the elusive letter X. From the Xenopus frog to the Xantus's hummingbird, the diversity of nature never fails to inspire awe.