Is being nocturnal a life cycle adaptation?

Being nocturnal can be considered a behavioral adaptation rather than a life cycle adaptation. It allows certain species to thrive in their environments by avoiding daytime predators, reducing competition for resources, and capitalizing on cooler temperatures. While nocturnality may influence certain aspects of an organism's life cycle, such as breeding or foraging times, it is primarily a response to environmental pressures rather than a change in the fundamental stages of development.