Life During the Mesozoic Era

This video explores the life that developed from about 225 million years ago up through Cenozoic time. While dinosaurs played a key role during the Mesozoic, there were many other forms of life. Insects, turtles, bony fishes, flies, mosquitoes, lizards, birds and pterosaurs and snakes. This tape also looks at some of the mass extinction theories as to why life forms suddenly changed or died off.