On a misty Cretaceous morning, a male Iguanodon bernissartensis courts the subject of his affections with his mating song. The male of the species, of course, is the one with the orange stripe on his head.
Living in Europe between 126 and 113 million years ago in the Early Cretaceous Period, Iguanodon was a distant relative of the later hadrosaurs (or “duck-billed” dinosaurs). It might have used its distinctive thumb-spike to crack open seeds or fruit as well as defend itself from predators. Iguanodon is also remarkable for being the second non-avian dinosaur to be named, with the first being the Jurassic meat-eater Megalosaurus.