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With a clean bill of health, this dinosaur likely didn’t have many predators due to its immense stature. And while Brachiosaurus did not have the diet of a hunter, it was a major predator of plants, because Brachiosaurus had to eat 400 pounds a day to maintain its size.

• Late Jurassic, 150-140 million years ago
• North America and Africa
• Herbivorous, Herd
• 40-50 feet tall, 85 feet long