The plant-eating Brachiosaurus, whose name means "arm lizard," roamed the planet 150 million years ago. Weighing about 75 tons and measuring an average of 75 feet in length, Brachiosaurus was one of the largest animals to ever live. A cast of The Field Museum's Brachiosaurus, which was originally a denizen of the late Jurassic Period, now resides at O'Hare International Airport. This textured, plush Brachiosaurus stands 20" tall. Appropriate for ages 3 and up.