Meet the Creatures of Dinosaur Island: Brachiosaurus! The Brachiosaurus was a gentle giant, reaching heights of over 40 feet and weighing in at over 28 tons. It's known for its incredibly long neck, used for reaching tall plant life. Its size required it to eat between 400 and 900 pounds of food PER DAY, meaning it spent a lot of time snacking on greens in the Late Jurassic jungle.If the Brachiosaurus was alive today, it would've been a giraffe, munching on the leaves at the tops of trees. Want