Animals March 5, 2020 11:22 am Your Dog Is a Good Dog. But Most Dogs Show Signs of Aggression, Study Says Is your dog a good boy or girl? Consider yourself lucky. A new study by researchers in Finland found that 72% of dogs showed problematic behavior like aggression. US & World Videos 0:48 Interstate 95 in Norwalk closed after crash and fire 0:37 Crash and fire shut down both sides of Interstate 95 in Norwalk 1:36 Arizona Senate repeals 1864 abortion ban 2:15 Heavily-camouflaged minors charged after ‘assassins' game at Old Lyme school 2:40 7th grader brought gun to school in Hartford: police