Examples of prey predator interactions where density of predator is very low and prey form groups when the predator attacks the prey for food?

Question

>**Examples of prey predator interactions where density of predator is very low (has a threat of extinction) and prey form groups when the predator attacks the prey for food.** I have searched this in net but not get examples. Please help me to supply some examples with a brief interaction of type discussed above. EDIT **Specialty of predator:** **Predator population has a threat of extinction due to their low population. They have the difficulties in locating acceptable mating partners for sexual reproduction during their receptive period due to low population densities.**

Answer 1

If I'm understanding your question correctly, yes. This is observable with herd animals such as bison and water buffalo, where only a handful of predators will encircle a herd of some sort of herbivore. The prey will form circles around each other, facing outward to repel the threat of a hungry wolf.