Predation is a relationship between organisms in which one species harms another and cannot exist without it. In predation, members of one species (predators) catch and eat members of another species (prey).
Predation is widespread in nature. A classic example of predation is the relationship between lions and antelopes. Lions hunt antelope to get food. Without antelopes, lions would not be able to survive in this ecosystem.
Another example is the relationship between wolves and deer. Wolves constantly hunt deer, which is their main prey. At the same time, wolves cause serious damage to the deer population by eating many individuals. But wolves themselves depend on the presence of deer as a food source.
Thus, predation maintains a balance in the number of predators and prey in the ecosystem. Although it is detrimental to one species, predation is an important mechanism for regulating relationships between species in nature.