Strange new mixes between purebred dogs is all the rage right now. The classified ads in the newspaper and advertisements on the internet list mixes between just about everything. There are all kinds of oodles, doodles, and poos; like Labradoodles, cockapoos, chavachons, maltepoos, and so much more. Is this a problem? Or not? Liz, Kate and Petra talk about what mixed breeds are, and the pros and cons of these designer dogs (or: mixed breeds).