“…and the existence of spatially inhomogeneous periodic orbits and nonconstant steady state solutions were obtained by the bifurcation method and Leray-Schauder degree theory. The Hopf bifurcation of model (1.3) was also investigated in [26,32]. We remark that there are also many results on the pattern formations for other diffusive predator-prey models and chemical reaction-diffusion models, see [1,13,17,18,20,21,23,28,29,30,31,34] and references therein.…”