Raptor

"Raptor" is a blanket term used to refer to one of many different dromaeosaurid dinosaurs, paricularly Velociraptor, Deinonychus and Dromaeosaurus. These dinosaurs are notable for being fast, intelligent, small and very ferocious. In Revelations, one particular species of Raptor is particularly common.

Description
Raptors are small, their size usually being in the region of 1-2m tall. They are bipedal, running quickly on two muscular legs, counterbalanced by a long tail stiffened with rods of intelocking bone. They have powerful grasping hands with curved, strong claws, and most species have a distinctive toe claw that curves around like a sickle. These 'killing claws' are used to stab at prey, or latch on to them while hunting. Many species of raptor bear feathers, being relatives of the forerunners of birds.

1.01 - Dawn
One raptor is encountered having traveled through an anomaly into the present day. It is the primary antagonist in this episode. The species is not identified, though James Harlow speculates that it may be a Deinonychus.

Behind the Scenes

 * The "Raptors" depicted in Dawn are based on Deinonychus, and were originally intended to sport feathers. However, early tests showed that the rendering of feathers on the CGI models would take far too long, and a bald, fictional species was created instead.