An Australian cattle dog from northern Virginia is able to distinguish between a school bus and an aircraft as they appear on a television screen in the family home.br br Footage from October 2 shows service dog Boba answer the question correctly by signalling on the correct "yes" or "no" piece of paper.br br Boba's owner told Newsflare: "Boba the blue heeler (a.k.a. an Australian cattle dog) has been learning to answer yesno questions about his environment based on his extensive vocabulary. br br "When asked if an airplane on TV was a school bus, he answered no. When asked if it was an airplane, he answered yes. br br "Boba is an 18-month-old over-achieving service dog in training who understands well over 150 wordsphrases so far. br br "He also has an odd toy arranging behaviour, can match basic shapes, correctly answers yesno questions & is learning to count. br br "He lives in northern Virginia with his parents where he is homeschooled by his mother.