The Vienna-based researchers showed that dogs will stop doing a simple task when not rewarded if another dog, which continues to be rewarded, is present. Writing in the journal PNAS, the scientists say this shows a sensitivity in dogs that was only previously found in primates. The researchers now plan to extend their experiments to [...]
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When you’re smiling, the whole world really does smile with you. A paper being published Friday in a British medical journal concludes that happiness is contagious — and that people pass on their good cheer even to total strangers. American researchers who tracked more than 4,700 people in Framingham, Mass., as part of a 20-year [...]
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