Quick Take Nevada designated the desert bighorn sheep as its state animal in 1973, citing its toughness and ability to ...
Due to its vast size — stretching from Canada and Greenland in the north, to Mexico in the south — North America contains a vast range of habitats. From land to sea, there are forests, mountains, ...
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Around 34 million ...
A subset of North American iguanas likely landed on an isolated group of South Pacific islands about 34 million years ago — having rafted some 5,000 miles from the West Coast of the faraway continent, ...