Rabbits and foxes are used as a stereotypical example of conflict. However, "even" foxes and rabbits actually cooperate with each other - as follows:

A fox slinks about, looking for food. When he spies a rabbit munching in the grass, he begins to creep closer. If the rabbit sees the fox coming, it will stand on its hind legs, observing the fox. The fox now realizes that its been discovered, and it will turn away from the hunt. The rabbit could run, but that would entail wasteful energy expenditure. So it simply signals the fox. The fox gets the "I see you" signal, and turns away, because it also doesn't want to expend energy on a futile chase. So both animals come out ahead, by the use of a signal. The rabbit's work loop (stay alive) has been completed with minimum energy expended, and the fox's work loop (find food) has been terminated unsuccessfully, but with less energy used than if it had included a fruitless chase.

The rabbit helps the fox save energy, the fox helps the rabbit save energy - it's a deal. They don't want exactly the same thing - but that is true for many traders, and it doesn't prevent cooperative trade arising between them. Nature is full of such cooperation.