Figure 5From: Global Hopf bifurcation for three-species ratio-dependent predator-prey system with two delays System ( 5.1 ) undergoes a Hopf bifurcation when \(\pmb{\tau_{1}=20}\) , \(\pmb{\tau_{2}=1.1}\) . A Hopf bifurcation occurs from the positive equilibrium \(E^{*}\). The initial value is \((4,3.2,1)\).Back to article page