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.
A frog is an animal that belongs to the class of organisms that undergo metamorphosis, have a specific body structure, and live in both water and on land.
External reference — all senses of the word “Frog Animal” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.