Share this on WhatsApp Some of the largest and most ferocious dinosaurs of all time had an anatomical secret to their success. Like many modern birds, Tyrannosaurus, Apatosaurus and other giants had complex networks of air sacs that grew out of their throats and lungs and into their bones. The resulting porousness made them lighter, … Continue reading Dinosaurs’ Air Sacs Evolved Many Times and Let Them Take Over the World