The term for a creature that is active at dawn and dusk is crepuscular. Crepuscular animals primarily engage in their activities—such as foraging, hunting, and mating—during the twilight hours, which can provide advantages such as lower competition and reduced predation risks. Many species have developed adaptations to thrive in these dimly lit conditions, including enhanced night vision and specialized behaviors. Common examples of crepuscular animals include deer, rabbits, and certain species of moths. This behavioral pattern allows them to exploit the transitional times of day and can be beneficial in maintaining energy efficiency and avoiding harsh environmental conditions.