Answer:
Evolution
Step-by-step explanation:
The evolutionary perspective explains that humans and other animals tend to have a feeling of fear because of their historical need of survival. If there is anything which has been a threat for their survival, humans tend to fear from that thing. Fear provides survival value for a species.
For example, the fear of snakes has an evolutionary perspective which causes us to fear snakes and hence helps us to avoid them so that we have minimal risk for death.