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| Canine, Various | 1999 | Sheldrake, R. (1999). Dogs that know when their owners are coming home: And other unexplained powers of animals. New York, NY: Three Rivers Press. |
| Canine | 1999 | Maddox, J. (1999). Dogs, telepathy and quantum mechanics. Nature, 401(6756), 849-850. |
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| Various | 2002 | Brunke, D. B. (2002). Animal voices: telepathic communication in the web of life. Rochester: Bear & Company. |
| Various | 2002 | Nickell, J. (2002, Nov). Psychic pets and pet psychics. The Skeptical Inquirer, 26, 12-15+. |
| Various | 2002 | Lohr, G. A. (2002). Psychic pets network. Washington Business Journal, 20(47), 3. |
| Various | 2003 | Schul, B. (2003). The psychic power of animals. New York: An Book. |
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| Avian | 2003 | Sheldrake, R. & Morgana, A. (2003). Testing a language-using parrot for telepathy. Journal of Scientific Exploration, 17(4), 601-616. |
| Various | 2009 | Dutton, D., and Williams, C. (2009). Clever beasts andfaithful pets: a critical review of animal psi research. The Journal of Parapsychology, 73, 43-70. |
| Various | 2011 | Erickson, D. L. (2011). Intuition, Telepathy, and Interspecies Communication: A Multidisciplinary Perspective. Neuro Quantology, 9(1). |
| Various | 2012 | Knight, E. E. (1998). Psychic pets: Supernatural true stories of paranormal animals. School Library Journal, 44(6), 172. |
| Canine | 2014 | Kirk R. G. (2014). In dogs we trust? Intersubjectivity, response-able relations, and the making of mine detector dogs. Journal of the history of the behavioral sciences, 50(1), 1-36. |
| Canine | 2016 | Erickson, D. L., Fisher, D., Woelk, B., Buckner, W., & Ashley, C. (2016). A Mixed Methods Study of Telepathic Interspecies Communication with Therapeutic Riding Horses and Their Recovering Wounded Veteran Partners. Neuro Quantology, 14(2). |
| Various | 2018 | Duggan, M. (2018). “Animals in Psi Research”. Psi Encyclopedia. London: The Society for Psychical Research. |