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Credit: Rebecca Fränzle Domestic dogs show many adaptations to living closely with humans, but they do not seem to reciprocate food-giving according to a study, publishing July 14 in the open-access journal PLOS ONE, led by Jim McGetrick and colleagues at the University of Veterinary Medicine in Vienna, Austria. The researchers trained 37 domestic dogs to operate a food dispenser by pressing a button, before separating the button and dispenser in separate enclosures. In the first stage, dogs were paired with two unfamiliar humans one at a time. One human partner was helpful - pressing their button to dispense food in the dog s enclosure - and one was unhelpful. The researchers also reversed the set-up, with a button in the dog s enclosure that operated a food dispenser in the human s enclosure. They found no significant differences in the dogs tendency to press the button for helpful or unhelpful human partners, and the human s behavior in the first stage did not affect the dog

Jim mcgetrickKonrad lorenz institute of ethologyUniversity of veterinary medicineAustrian science fundAustrian academy of sciencesVeterinary medicineAustrian academyKonrad lorenz instituteபல்கலைக்கழகம் ஆஃப் கால்நடை மருந்துஆஸ்திரேலிய அறிவியல் நிதிஆஸ்திரேலிய கலைக்கழகம் ஆஃப் அறிவியல்கால்நடை மருந்துஆஸ்திரேலிய கலைக்கழகம்கொன்ராட் லோரன்ஸ் நிறுவனம்