In this episode of pplpod, we travel back to the Late Jurassic to examine the Brachiosaurus, one of the most famous giants in paleontology. We discuss the 1900 discovery of the "arm lizard" by Elmer S. Riggs in the Morrison Formation and analyze how this sauropod differs from its long-necked cousins due to its massive forelimbs.

We also explore the confusion between the North American Brachiosaurus altithorax and the African Giraffatitan—the dinosaur actually depicted in the movie Jurassic Park. Finally, we dive into the scientific debates surrounding this high-browsing herbivore, including its warm-blooded metabolism, vertical neck posture, and how it consumed nearly 400 kilograms of vegetation a day.