I have a rare breed, a purebred Havanese, Poco, and i like to brag about her. She can do all kindsa trix, and Growl is one. Yep i taught my 10"-high poofy-haired Cuban Silk Dog to growl. She does lot of other typical tricks too, like sit speak rollover jump. She is very intelligent and she licks a lot. You can stick something in her face and she will lick it. She is my adorable puppy although she is 3 years old. I got her off the Internet! A breeder in California was moving to London and couldn't take her so they sold her to Us. WEBDOGG!