Growing up to two feet long, the Gila monster's size sets it apart from many other smaller, more agile Sonoran Desert lizards. "They did not read the book on how to be a desert lizard," says Dale ...

They’re as fierce as they are small: These 2.5-ounce raptors prey on birds twice their size and feed lizards to their chicks. Sadly they’re no match for urban development gobbling up their unique ...