Grimm-Goliath

They have a primarily black body, with giant, white tusks and a white and red patch on their foreheads. Like most Grimm, they have bony, white protrusions on their bodies, with a massive row of them going down their spines. The Goliath is one of the largest land-based Grimm seen yet, standing at 20 stories tall at the shoulders. They also seem to travel in herds.
  These Grimm's abilities are currently unknown; however, it is known that they possess great power (to the point where even shots from a sniper rifle would be only a minor irritation) and a greater intelligence than the average Grimm (learned over the span of hundreds of years), as they stopped attacking Humans once they figured out that repeated attempts to kill them resulted only in death.