Adaptedness

As with adaptations in general, psychological adaptations are said to be specialized for the environment in which an organism evolved, the environment of evolutionary adaptedness, or EEA.

Environment of evolutionary adaptedness main EP argues that to properly understand the functions of the brain, one must understand the properties of the environment in which the brain evolved.

Taste and smell respond to chemicals in the environment that were significant for fitness in the environment of evolutionary adaptedness.

That environment is often referred to as the "environment of evolutionary adaptedness" (EEA).