I am basically from math background and doing Ph.D in mathematical biology. So I am not so efficient in biology. But my problem based on cooperative behaviour of animals during hunting which is related to the animal behaviours in ecology.
We know that different animals show cooperative behaviour during hunting (or, group hunting) such as wild dogs, lions, chimpanzees, birds, spiders, crocodiles etc. We also know that fear of predator (predation risk) reduces the growth rate of prey population. Now, I am looking for example(s), in which prey population does not fear predator but cooperative behaviour of predators induces (creates) fear in prey.