According to Animal Planet, dogs can see in the dark better (although differently) than humans. So it might seem strange that a dog would become anxious by darkness. However, the dark might worsen vision for dogs who are already experiencing vision problems.
For instance, dogs have very sensitive hearing, and as a result, they can become easily restless at night from loud noises. Thunderstorms and fireworks are several examples of loud noises that are known to exacerbate a dog's anxiety. Exposure to different environments may also cause them to be fearful.
While pups do not perceive darkness in just the same way that humans do, it is possible for some dogs to become scared of the dark for any number of reasons (such as past bad experiences).
You'll know your dog is afraid of the dark if he tucks his tail between his legs once the lights go off. You may also notice quick pacing and a lot of sniffing. If you leave your dog alone in the dark, a scared dog may tear up things he knows he is not supposed to.
One concern about leaving lights on is disrupting the dogs sleeping pattern. Wolves are the ancestors of the domesticated dog, which were of course nocturnal. This means that lights shouldn't stop your dog from being able to sleep, but it might be an idea to consider leaving some of the house in darkness for them.
That's because their eyes have more rods, or light-sensitive cells, than ours do. Although dogs don't experience darkness the same way we do, certain factors could still cause a dog to feel afraid in the dark.
According to the Sleep Foundation, dogs, like humans, have circadian rhythms that are influenced by light. It's easier for them to sleep if it's dark, or at least dim. Can dogs be scared of the dark? It's not common.
Unlike humans, who generally sleep once a day, at night, dogs sleep both at night and throughout the day. Research shows that dogs get around 10 to 12 hours of sleep over the course of a 24-hour day.
Note: Whatever you decide, remember that being alone at night can be scary for a puppy, especially if they've never been separated from their mum and littermates before. It's normal for a puppy to need time and training to feel comfortable sleeping on their own through the night.
Dogs absolutely can see TV, and many seem to enjoy it. There are a number of features about television shows that dogs find attractive. Some of these are visual, such as motion, while others relate to the sounds coming from the TV. Dog eyes are very different from human eyes, so they see things on TV differently.
Once you bring a dog into your home, you become part of their pack. They enjoy sleeping with you because it makes them feel safe and comfortable. Sleeping together gives dogs an emotional connection to their owners. Dogs feel love and gratitude towards you, just like you feel towards them.
When it gets dark outside, the body produces more melatonin, which creates a feeling of drowsiness. Scientists believe that an overproduction of melatonin when the days become shorter can contribute to SAD, and given that dogs produce the hormone as well, they may also be susceptible to the condition.
The television affects every dog differently.
While it's generally OK for dogs to watch television, the colors, sounds and content can make some dogs feel anxious.
Puppies don't have long attention spans, so distractions can keep them on their toes and out of trouble. The more distracted they are, the less likely they are to take their boredom out on your belongings. So, to be clear – YES, leave the TV on for your dog.
While they can still get around better than humans in total darkness due to their other senses, they will not be able to see. Although it's rare to have complete darkness, it's helpful to turn on a nightlight so your dog can see better at night.
Extreme fear and anxiety can occur in dogs for many different reasons. For example, loud noises, storms, fire, and unfamiliar people and places could all trigger fear and anxiety. Fears may also be caused by bad experiences, such as trips to the veterinarian or time spent in boarding kennels.
Don't use punishment
But if your dog is fearful, it is especially important to stop using punishment because the risk is your dog may become more fearful or even become afraid of you. Your dog is already stressed by whatever they are afraid of. You don't want to add to that stress by using aversive methods.
Maybe you have come home late from work and forgot to leave on a light for your pooch, only to find that your house is pitch black inside. Although it may depend on the dog and just how dark it actually is in your house, dogs can indeed see with the lights off and have better vision in the dark than humans do.
Dogs mark their territories, and by howling or crying at night, they might be trying to inform their companions or other dogs about their whereabouts. A dog's cry can also be understood as a sign of alertness to its owners about outside threats or trespassers.
Many dogs have sound phobias to loud noises like fireworks, thunderstorms, gunshots, and firecrackers. There is even research that suggests noise phobias can be inherited. According to Dr. Klein, herding breeds are particularly sensitive to noise phobias, perhaps because they are so attuned to their environment.
Dogs can see better in the dark than humans, but the dark could change your dog's behaviour. Objects dogs see as normal in the daylight, may look scary in the dark. For example, someone wearing all black clothing may frighten your dog in the dark, so, it's important to keep your dog on a lead.
It may be that your dog is more nervous at night, or that due to the quiet, he hears perceived threats more easily. Your dog may be on alert for predators, a real fear in the wild, or may be trying to do his duty and protect his family.
Arthritic or structural ailments can make dogs uncomfortable and therefore make it harder for them to settle, causing stress. Also failing senses of sight or hearing can put your dog on edge at night. Noise phobia can also be heightened during the night when it is dark and visibility is restricted.
Point: Dogs carry certain intestinal parasites, fleas, and ticks that cause human illnesses. Sleeping with a dog increases human exposure to these parasites and vector-borne diseases. Very young, very old, and immune compromised people are particularly at risk of infection.