What type of interaction regulates the population of both species involved?

Predation is the type of interaction that regulates the population of both species involved. In a predatory relationship, one organism, the predator, hunts and consumes another organism, the prey. This interaction has a significant impact on both populations: as the prey population decreases due to increased predation, the predator population may also decline because of a lack of food. Conversely, if the predator population decreases, the prey may thrive and their numbers can increase. This dynamic balance is crucial for maintaining ecosystem stability and can regulate population sizes over time, ensuring that neither species dominates the environment indefinitely.