The different times of day and night offer different advantages (and disadvantages) to different animals. Since people are most active during the day, we tend to think that daytime is the best of all times. But this is not really true. Some animals would not survive very long in the bright light of day. Predators might more easily catch them. Or their bodies might get too hot and dry up. Or they might not be able to compete with other animals for food. If they could talk, many animals would probably tell you that being crepuscular (active at dawn and dusk) and nocturnal (active at night) is every bit as good as being diurnal (active during the day).