Right: Freake, M.J., Muheim, R., & Phillips, J.B. (2006). Magnetic maps in animals: a theory comes of age? The Quarterly Review of Biology, 81(4), 328 Below: Freake, M.J., Muheim, R., & Phillips, J.B. (2006). Magnetic maps in animals: a theory comes of age? The Quarterly Review of Biology, 81(4), 329