Did you teach your dog how to bark? Probably not, but it seems like (y)our ancestors did.
This article discusses some research conducted by Csaba Molnar (which can be found here) wherein the acoustic properties of dogs’ barks were analyzed to determine their fundamental differences. Well, sort of. The researcher’s page is the place to go for the real lowdown on the study of canine cacophonies, where you’ll find .pdf files below each of the abstracts.
Check it out!