Difference Between Nocturnal and Diurnal Animals
Main Difference – Nocturnal vs Diurnal Animals Various factors such as availability of food, competition for food, mating, and danger from predators influence the biological clocks of animals. This is very important for the survival of animals. Thus, animals develop many adaptations according to their active hours. Based on the activeness during a day (24 hours), animals can be classified into two types: nocturnal and diurnal. Nocturnal animals are the animals that are most active during the nighttime, and diurnal animals are the animals that are active during the daytime.