Emergent property

An emergent property refers to a behavior that arises from the interaction simpler components in a complex system — not from the properties of the individual components themselves. Examples of emergent properties include various complex systems such as the behavior of cells in living organisms; the properties of social networks and ecosystems; Similarly, the behavior of a flock of birds, such as the ability to move in unison, emerges from the interactions between the individual birds. This is an example of how the whole is not always or necessarily the sum of its parts.