Robot dinosaurs let loose to demonstrate hunting techniques
Scientists have long puzzled over why some dinosaurs had feathers and wings long before they evolved the ability of flight. Experiments with a robot dinosaur may now have revealed the answer – they used them for hunting.Feathers show up in a range of dinosaur species, including icons like the velociraptor, but most of the time they were in a primitive form that would have only enabled the animals to hop short distances or glide at best. Only one group, known as Pennaraptora, sported plumage of pennaceous feathers, the…