dr. janine berger is an internationally renowned speaker she's well published writer and esteemed educator on behavior sciences. her unique expertise with respect to animal behavior has bring the spca's position on this particular issue. as dr. berger will test unfortunately she was not able to be here today, like food and water, daily exercise is essential to adopt proper health and well-being. many behavior abnormalities and dogs are due to underlying anxiety and exercise is the foundation to curbing most of these anxieties. for example, the amount of exercise the dog receives can affect his or her behavior, tradability, and his aggression levels. these are of course, important considerations to maintain public safety in crowded urban environments. off leash exercise benefits all of san francisco not just dog guardians and their pets. a supervisor winner has suggested, the gg nra closures will likely result in very serious overcrowding of san francisco in the dog parks. the city parks are already quite limited and off leash areas are particularly scarce. the san francisco spca we frequen