Many animals are struggling to survive in a shadowy world of the night.
Under cover of darkness, numerous nocturnal animals have adapted to the specific ways developing the extraordinary senses. They find food, attract the opposite gender or hide in a safe from the hungry predators.
Nocturnal animals have very good hearing and they can feel the sounds of movement. Snakes almost lost their hearing. Instead, they hear them by feeling the vibrations that travel through their bones.
They also have the heat detectors.
Using the dimples on the head that are sensitive to heat, the pit viper feels both the presence of animals but also estimated its distance and direction.
Most of the time nocturnal animals are silent in order not to attract the attention of predators. But sometimes they must produce the loud noise to attract a partner or warn the rivals to stay away.
Unlike some night animals who don't use eyes, the Galagos have, for example, huge eyes which reflect the light.
The eyes of other night animals, like the cats, also reflect the light in the same way.
The sense of the smell also plays a crucial role in how the night animals survive the environment with little or no light at all.
New Zealand bird kiwi has a very bad vision, but the exceptional sense of the smell among the birds.
Kiwi's nostrils are at the top of the curved beak which it uses to tap on the ground to stir and disturb the food, the worms and bugs hiding under the leaves.
