Brachiosaurus altithorax

Brachiosaurus, a towering herbivorous dinosaur from the Late Jurassic period, is known for its distinctively long neck, which was longer than its tail, and its unique body structure, with front legs that were significantly longer than the hind legs, giving it an upright, giraffe-like posture; this adaptation allowed it to reach and feed on vegetation high up in trees, well beyond the reach of most other herbivores of its time, and it grew to an enormous size, with estimates placing its length at around 80 feet and its weight at up to 80 tons, making it one of the largest and heaviest dinosaurs to roam the Earth, while its fossils have been found in what are now North America and Africa, providing vital clues about the ecological roles of massive sauropods during the Jurassic, before it, like many other dinosaurs, became extinct at the end of the Mesozoic Era around 66 million years ago.