A thought:
Whatever advances might be made in electronic technology and however creative the modern zoo or nature center have become, the naturalistic experience continues to be an unrivaled context for maturation and development.
– Stephen R. Kellert, “The Naturalistic Necessity,” in Julie Dunlap and Stephen R. Kellert, eds. Companions in Wonder: Children and Adults Exploring Nature Together (Cambridge, MA: MIT Press, 2012), pp. 113-36, on p. 115