Study shows a way to tell if your hamster is happy

(Phys.org)—A pair of researchers at Liverpool John Moores University in the U.K. believe they have found a way to measure happiness in hamsters. In their paper published in Royal Society Open Science, Emily Bethell and Nicola Koyama describe behavioral studies they carried out with hamsters, what they learned and why they believe their results indicate that hamsters, like other mammals, have feelings, or moods.

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