This illustrates the psychological concept of an algorithm. This is defined as a set of step-by-step procedures to obtain the correct answer to a particular problem. In the case of the chimpanzees, they have devised a process, utilising tools, that ensures they are able to exploit the two different food sources in the example. Sometimes, only one set of steps will allow the goal to be achieved, but in other cases, as this example illustrates, different paths can lead to the same solution.
