Free Online HD on Lookmovie. Extinct for millions of years, dinosaurs continue to fascinate as scientists struggle to understand the creatures that went from domination to extinction seemingly overnight. This four-part documentary series attempts to provide some answers. From the badlands to the Yucatán Peninsula, paleontologists scour the earth to learn about the predatory habits of carnivorous dinosaurs, the land area required to feed a large sauropod and much more.