Phenotypic Plasticity

Agarwal, Anurag A.  “Phenotypic Plasticity in the Interactions and Evolution of Species”.  Science, New Series, Vol. 294, No. 5541. (Oct. 12, 2001), pp. 321-326

Baldwin, Mark J. “A New Factor in Evolution”.  The American Naturalist, Vol. 30, No. 354. (Jun., 1896), pp. 441-451