Why did the dinosaurs become extinct? Could cholecalciferol (vitamin D3) deficiency be the answer?
Palaeontological deductions from the fossil remnants of extinct dinosaurs tell us much about their classification into species as well as about their physiological and behavioural characteristics.Geological evidence indicates that dinosaurs iphone 14 pro max las vegas became extinct at the boundary between the Cretaceous and Paleogene eras, about 6