Ecology also teaches that all life on earth can be viewed as a competition among species for the solar energy captured by green plants and stored in the form of complex carbon molecules. A food chain is a system for passing those calories on to species that lack the pant's unique ability to synthesize them from sunlight.

The Omnivore's Dilemma: The Search for a Perfect Meal in a Fast-Food World (ed. Bloomsbury Publishing, 2009) - ISBN: 9781408807255