Rapid eye movement may indicate neural activity, but dreaming for me implies a conscious awareness of the dream state, which I consider as unlikely in spiders.
A recent research article from Germany has made quite a splash in the popular media and raises some very interesting questions about animal minds.
Egnor: “Do you want me to explain Thomistic dualism to you?…David, do you not know how St. Thomas explained intentionality?” Papineau: “Uh, no.”
In my ongoing debate with biologist Jerry Coyne, frequent reference is made to Aquinas’ Five Ways, particularly to his Prime Mover argument.
Father Michael Chaberek helped me (a passionate but amateur Thomist!) understand an issue that perplexed me for years.