Holling-Tanner Predator-Prey Simulator Click on phase space to start a trajectory. dS/dt = αS(1 - S/qT) dT/dt = βT(1 - T/m) - cST/(h+T) α: β: c: h: m: q: Simulation Speed: Reset Simulation Etch Trajectory Show Nullclines Time: 0.0 sec