Growling Vocals

Grindcore is characterized by heavily distorted, down-tuned guitars, blastbeats, hardcore punk and crossover thrash influenced riffing, short songs, and a vocal style consisting of growls and higher-pitched vocals, often similar to those found in black metal.

If growling vocals are what you love, consider this grindcore band: Caninus.

Their lead vocalists are pit bull terriers.

http://www.myspace.com/caninus

http://www.pitbullgrindcore.com/download/caninus-locking_jaws.mp3

http://users.rcn.com/bendesky/