This skeleton has been mounted
        
        
          to show
        
        
          Deinonychus
        
        
          leaping
        
        
          towards a victim, claws ready.
        
        
          
            Jump
          
        
        
          
            and grab
          
        
        
          
            Velociraptor
          
        
        
          and
        
        
          its relations, such as
        
        
          the larger
        
        
          
            Deinonychus
          
        
        
          , probably
        
        
          hunted in packs and jumped
        
        
          onto the back of their prey, all
        
        
          four limbs
        
        
          extended.
        
        
          Deinonychus
        
        
          had
        
        
          a lightweight
        
        
          body and long
        
        
          hind legs.
        
        
          
            Deinonychus
          
        
        
          Velociraptor
        
        
          and
        
        
          Deinonychus
        
        
          belong to a
        
        
          group called the dromaeosaurids.
        
        
          Scientists believe these killing
        
        
          machines were related to
        
        
          the birds alive today.
        
        
          “
        
        
          t
        
        
          e
        
        
          r
        
        
          r
        
        
          i
        
        
          b
        
        
          l
        
        
          e
        
        
          c
        
        
          l
        
        
          a
        
        
          w
        
        
          ”
        
        
          .
        
        
          
            D
          
        
        
          
            e
          
        
        
          
            i
          
        
        
          
            n
          
        
        
          
            o
          
        
        
          
            n
          
        
        
          
            y
          
        
        
          
            c
          
        
        
          
            h
          
        
        
          
            u
          
        
        
          
            s
          
        
        
          m
        
        
          e
        
        
          a
        
        
          n
        
        
          s
        
        
          “Speedy thief.” Scientists believe it may have reached 65 km/h (40 mph).
        
        
          
            203
          
        
        
          
            Meet the raptors
          
        
        
          D
        
        
          i
        
        
          d
        
        
          y
        
        
          o
        
        
          u
        
        
          k
        
        
          n
        
        
          o
        
        
          w
        
        
          ?