Emotions are a type of behaviour, or instinctive reactions driving certain types of behaviour.
As an example, let's consider the anger one feels if one is stolen from. An organism that would routinely let his food be stolen away from him by others, without doing anything about it, would not do very well: his lineage would not be likely to last very long. An organism that had an instinctive reaction towards the thief that prevented the thief from taking his food would do much better. Anger is such an instinctive reaction. Therefore, should an inclination towards an angry reaction arise in the population, the genes associated would immediately be favoured in the population gene pool, and the trait would be able to spread and develop.
This is, of course, rather a simplistic representation of the principles involved, but informative enough, I hope.
Evolutionary psychology focuses on how human behavior and mental processes have been shaped by natural selection over time. It seeks to understand how evolutionary processes have influenced traits such as perception, cognition, emotion, and social behavior.
Potato
Evolutionary theory explains how life has evolved over time through natural selection, but it does not provide a specific purpose or meaning for human life. Purpose and meaning are philosophical and existential questions that individuals must grapple with on a personal level. Evolutionary theory helps us understand our biological origins, but the search for purpose goes beyond the realm of science.
We use the term "vestigial organs" for structures that may have had a purpose at one point in our evolutionary development but no longer seem to suit any purpose.
Yes, disappointment is considered a basic human emotion. It typically arises when our expectations are not met or when we experience a loss or failure in some form. This emotion is a natural part of the human experience.
no
understand the complexities of human emotion
jelousy
To show evolutionary relationships based on traits
sympathy.
Disappointment is a basic human emotion as seen in many cases. It is due to the expectations which are from various people.
shift the focus from realism to emotion.