Similar in shape to a European Magpie, with the largest individuals possibly attaining the size of a raven,[1] Archaeopteryx could grow to about 0.5 metres (1.6 ft) in length. Despite its small size, broad wings, and inferred ability to fly or glide, Archaeopteryx has more in common with small theropod dinosaurs than it does with modern birds. In particular, it shares the following features with the deinonychosaurs (dromaeosaurs and troodontids): jaws with sharp teeth, three fingers with claws, a long bony tail, hyperextensible second toes ("killing claw"), feathers (which also suggest homeothermy), and various skeletal features.[2][3] The features above make Archaeopteryx a clear candidate for a transitional fossil between dinosaurs and birds.[4][5] Thus, Archaeopteryx plays an important role not only in the study of the origin of birds but in the study of dinosaurs.