Can't u really teach an old dog a new trick?

Myth of course, it may not be that easy though, idea here is repetition and make your dog focus, same as in young dogs/pups, difference is that you need more patience in doing so.

Good Q and obviously the statement has been expanded to be used in our own species as well. I don't know if "TEACH" is entirely accurate though. Animals learn by association. What happens to be their NEEDS obviously they also "teach" us, as in when to answer natures call for example. I suspect an animal, through repettition, learns to associate words, inflections, gestures, activities, with those things that either please them or don't, but I'm a firm believer in that they have levels of tolerance and acceptance in what they WANT to know or do. I suspect it has less to do with age, than it does attitude. Certainly to directly answer your Q, I doubt it's reasonable to expect a 10 year "old" dog to run a Hurdles race with a 10 Month old dog. Steven Wolf

i thinck you can becouse ion my opinion a dog it is verry smart.It is tru that if he was raise in a bad family whre they treet him wrong and learn him to byte everyoane to defence then i thinck that is verry hard to teach him not to do that can say that imposible.But if he was raised in family and now it is in another and he is treet write then i thinck that he can learn new thinck's and he can listen for his new masters.