Rattelin

Appearance
The Rattelin normally stands around at 5'7" and weighs around 230 pounds. It possesses a white skull-like mask on it's upper face, that compliments it's beady blood-red eyes. The spine of this creature is visible with the bones popping out slightly from it's back. The rest of the creature's body is covered in a black fur.

The most curious aspect of the Rattelin is it's six legs, which it uses to preform it's admirable rushing and jumping. These are almost counter-balanced by it's small front arms, that seem to be used mainly for the consumption of food.

Behavior
Rattelin are solitary creatures, seemingly never seen in any number higher than one. The reason for this is unknown. However it has been shown that this creature is highly territorial with other known species of Grimm. In battle the Rattelin stalks it's prey before they are either alone or in a vulnerable position. It either rushes in and tries to crush it's prey or jump on it from above, using it's small arms and large jaw to ensnare the prey before consuming it. It should be noted that any loud sounds, have a extremely high tendency of sending this creature scurrying away.

Trivia

 * Based on the rats that plauged the city of Hamelin in the fairy tale "The Pied Piper of Hamelin." This Grimm also getting it's name from said city and the german word for rat "Ratte."
 * I own this design of the creature however the artwork shown was done by the talented Zillan the Villain on DeviantArt.