According to the Encyclopedia Britannica, Spinosaurus measured about 45 to 60 feet long and stood over 20 feet high. It likely weighed anywhere from 13 to 22 tons (26,000 to 44,000 pounds), making it ...

For years, controversy has swirled around how a Cretaceous-era, sail-backed dinosaur—the giant Spinosaurus aegyptiacus —hunted its prey. Spinosaurus was among the largest predators ever to prowl the ...