Facts about Nocturnal Animals

The animal kingdom comprises diurnal, crepuscular and nocturnal animals. While diurnal animals are those that remain active through the day, crepuscular animals are most active at dawn and dusk. Nocturnal animals are those that remain awake and active during the night. The raccoon, red fox, owl and the skunk come under the last category.

Why are Nocturnal Animals Called So?

Most animals display behavior patterns not very unlike that of man. While most animals are active during the daytime, there are quite a few that display nocturnality. Nocturnality refers to an animal's preference to sleep through the day and remain active during the night. Though this behavior opposes the diurnal nature of human lifestyle, nocturnal animals add quality to the animal kingdom. Animals like the flying squirrel and mink follow an intermediate crepuscular schedule or a preference for twilight activity.

While many animals that are described as nocturnal remain active during the day as well as the night, there are a few that rely on their post-twilight heightened instincts. The niche differentiation makes additional resources and a special time zone available to the animal. The ecological niche and adaptation to avoid predation are the main features of nocturnality. This kind of animal behavior is mostly seen in the desert regions around the world, where the nocturnal behavior pattern enhances osmoregulation.

Facts about Nocturnal Animals

There are a number of nocturnal animal species like sea turtles or seabirds that visit breeding sites at night to reduce the risk of predation. They are able to protect themselves as well as their offspring due to the pattern they adapt to, in the course of their lifespan. Otherwise diurnal, these animals are also crepuscular, which means that they are most active during the twilight hours.

Nocturnal animals have highly developed senses. Their sense of hearing, sight and smell are specially adapted, to make the most of night-illumination. Some nocturnal animals have vision that is easily adapted to night and day illumination, while bushbabies and bats are able to remain active only at night. These animals burrow and sleep during the daytime and hunt at night. Many nocturnal animals have special eye cells called rods that enable them to capture light when it is dark, more than humans or other animals can in the same environment.

Generally speaking, nocturnal animals benefit from scents that linger in the air longer at night. Since the air is still, it becomes easier for these animals to pick up and track scents, and find food. Their sharp hearing ability enables them to locate their prey as the latter flee over fallen leaves and twigs. Though the prey also gets away many times, the winner in the animal kingdom is one who hears and locates the other first.

The bodies of nocturnal animals have special adaptations to enable them to survive the dark. Nocturnal animals like lemurs have special eyes, while bats use echolocation. Echolocation refers to the bat's ability to emit a high-pitched sound. The sound bounces off objects within range and gives the animal information about the shape, distance and direction of the object. Nocturnal animals like rabbits have an extra powerful sense of hearing.

These animals inherit features that help them snag their prey easily. For example: the owl has a special feather lining on the edge of each wing that muffles sound as it swoops down on prey. A cat has heavy fur and soft foot pads that help it to sneak up on a meal, while the aardvark can actually hear and smell insects as it walks along.

There are three basic advantages that a nocturnal animal benefits from. Not only do the animals get to hunt and stay awake at the cooler hours of the night, but they are also exposed to less competition when they hunt in the dark. The twilight and night hours also protect these animals from predators. They are able to camouflage well at night, to find their way, hunt and flee from predators.