This animation discusses research by Nagasawa et al., which uncovers a neural feedback loop between people and their canine pets, a bonding mechanism that has strengthened the human/canine relationship for millennia. This material relates to a paper that appeared in the April 17, 2015 issue of Science, published by AAAS. The paper, by M. Nagasawa at Azabu University in Sagamihara, Japan, and colleagues was titled, 'Oxytocin-gaze positive loop and the coevolution of human-dog bonds.'
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