The following sources were consulted in the preparation of the article “11 signs of a happy dog.”
- Play Signals as Punctuation: The Structure of Social Play in Canids
- Asymmetric tail-wagging responses by dogs to different emotive stimuli
- Partner preferences and asymmetries in social play among domestic dog, Canis lupus familiaris, littermates
- Oxytocin-gaze positive loop and the coevolution of human-dog bonds
