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Dogs and cats release 'love hormone' around each other, humans
CLAREMONT, Calif., April 28 (UPI) -- A U.S. researcher found animals release the "love hormone" oxytocin when they interact with each other and with humans.
In a small-scale experiment for BBC television, Zak tested the oxytocin levels of different animals at an animal refuge in Arkansas, where numerous animals interacted with each another.