On the left side of the equation is the growth rate of x (or y) with respect to time. The so-called equilibrium point is the point where the number of prey and predator is relatively balanced. Wikipedia says, let both expressions get 0, that is, let them not grow and get a balance point. Personally, dx/dt = dy/d.

T this is an equilibrium, so it is not difficult to have two sets of solutions, x=y=0, x=y= 1. The first group shows that species extinction is balanced; The second set of solutions shows that when the prey and hunter only have 1, they do not invade each other. In fact, it is not difficult to understand that it is not just human beings who are lonely. . . That is beside the point. In fact, it is the result of this powerful equation. I am embarrassed. Hope to adopt. . .