Mark has dedicated over 30 years to the pet training industry. In that time, through his company, Comprehensive Pet Therapy, Inc., Mark has directly or indirectly trained over 50,000 dogs and 150 cats. Notable achievements include competing nationally, winning a prestigious Regional competition, functioning as "Pet Expert" on the local NBC news, qualifying as an expert witness in animal behavior in multiple courts of law, co-authoring 17 peer-reviewed research papers in the field of canine neuroscience, speaking at multiple canine science conferences, performing as a keynote speaker at the AKC National Detection Dog Conference, appearing internationally in the PBS "Nova" series and the Nat Geo-Wild series "Puppy Days," and being interviewed for a CBS "60 Minutes" segment on canine beh...