Thought the blue whale was the biggest animal ever? Turns out, a dinosaur called Patagotitan mayorum once roamed Earth and was even longer than a blue whale—up to 131 feet! While whales are heavier, Patagotitan was the ultimate land giant, supporting its massive size on four sturdy legs. Imagine a creature so big, its head would poke out of a museum hall! Dinosaurs really knew how to go big or go home. #Science #dinosaurs #Patagotitan