They were one of the quietest predators found in the jungles of the planet Kashyyyk, despite the fact that they stood more the four meters in height. Bolstyngars used a pair of auditory clusters to help them locate their prey, but these also gave the bolstyngar the ability to hear virtually every sound the jungle made. Thus, the average bolstyngar was continually bombarded by sound, and it often preyed on those creatures that annoyed them the most.