Each concept here is mapped to its prerequisites — the ideas you'd need first to understand it — all the way down to four foundations: Space, Time, Energy, Pattern. Click any prerequisite to drill down, or scroll for the chain graph.
The domestication of an animal that interacts with and responds to its environment, resulting in a relationship where the animal is cared for and provided shelter in a habitable environment, thereby creating a mutually dependent bond between the animal and the space it inhabits.
External reference — all senses of the word “pet” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.