1. Serpell, J.A. (1986). In the Company of Animals, Basil Blackwell.
2. Brown, D.E. (1991). Human Universals, McGraw-Hill.
3. Christakis, N.A. (2019). Blueprint. The Evolutionary Origins of a Good Society, Little, Brown Sparks.
4. (2023, July 15). World Animal Foundation. Available online: https://worldanimalfoundation.org/dogs/.
5. Kotrschal, K. (2019). Mensch. Woher Wir Kommen, Wer Wir Sind, Wohin Wir Gehen, Brandstätter.