Why Are Rats Nocturnal?
Rats are naturally nocturnal, and they can sleep up to 15 hours a day. If given the choice, they will choose to sleep during the day and be active at night. This behavior is instinctual and evolved in the wild to help them avoid predators. However, it does not mean that rats stay out of sight during the day.
Rats are social animals. Their behavior makes them noisy, even when they’re sleeping. They’re not known for barking, but they do chew and produce a lot of noise. This can lead to nighttime raucous. If you have a pet rat, you should try to accommodate their sleeping habits.
Rats’ nocturnal behavior is primarily due to their poor eyesight. Because they cannot see in the dark, they rely on their sense of smell and hearing. Rats also use their whiskers to navigate in the dark, which helps them avoid predators. The best way to avoid a predator is to be in a dark place with little light.
In addition to these behaviors, rats also use ultrasound communication to find other rats. Their sounds are too high-pitched for us to hear, but males and females use it to find each other. Their signals are also transmitted through scent marking, which they use to follow trails back to their nests.