Extinct Era on Instagram: "From a hatchling of roughly 5 kilograms (11 pounds) to a giant exceeding 70 tons, Argentinosaurus grew among the fastest and largest known in the dinosaur world. Living about 95 million years ago in South America, it likely reached over 35 meters (115 feet) in length. Evidence from related titanosaurs shows that young were tiny and vulnerable at hatching, yet capable of rapid growth to colossal size. Survival for juveniles depended on constant feeding and avoiding larg

Spinosaurus