Abstract
In this work, we employ the Laplace residual power series method (LRPSM) to acquire numerical results for the complex fuzzy fractional population dynamics model in Caputo's sense. The solutions of this complex fractional model are calculated in the form of a convergent power series with easily computable components. Moreover, the accuracy and efficiency of the present method are shown via numerical examples. Finally, our results are simulated in terms of graphs for the several fractional order and at uncertainty r is an element of [0, 1].