 SCP-549 appears to be a miniature version of Ursus Arctos Horribilis, or Grizzly Bear. It is approximately 17 centimeters in length when standing on its hind legs. However, SCP-549 has a mass in line with an average adult grizzly bear, around 305 kilograms. It consumes as much food as a full-sized grizzly would, and is able to exert all the same force with its claws and bite. This presents a number of problems, since its strength is concentrated over a much smaller area. Several of SCP-549's first enclosures were destroyed because it exerted far more force than expected of so small a creature.