The short winter days mean that many of us are left with no choice but to walk our dogs after the sun goes down - but what happens if your dog is scared of the dark?
While it isn't common, a fear of darkness can sometimes occur in pets.
So, if your dog seems anxious at nighttime or cries when you put them to bed, they could have developed a fear of the dark, or be showing signs of something else.
Changes in your dog's behaviour, such as whimpering, barking, drooling and restlessly pacing up and down, can all be reasons to cause concern.
If your dog appears to be avoiding dark rooms and shadows or is struggling to sleep at night, you aren't alone.
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How common is it for dogs to be scared of the dark?
Ryan Neile, head of behaviour services at Blue Cross, explains: "Generally speaking, it isn't common for dogs to be scared of the dark as their powerful eyesight allows them to see really clearly in low light."
But while many dogs might not have a problem with the dark, Ryan does note that, "it is possible for dogs to become scared of anything, including the dark, for any number of reasons."
What can cause a dog to be scared of the dark?
There could be many different reasons as to why your dog is fearful of the dark.
Different breeds and personality types react differently to darkness, and some dogs may associate nighttime with other things that frighten them.
Ryan explains: "Fireworks generally only make a loud noise at night, so dogs that are scared of fireworks might also generalise that fear to include the darkness."
Other reasons may include separation anxiety, bad vision, previous trauma and underlying health conditions.
How can I stop my dog being scared of the dark?
Positive reinforcement, patience and affection can help aid your dog in getting over their fear.
If night walks are a source of stress, take it slowly and give them comfort and treats to make it seem less daunting.
Illuminating lamps, glow in the dark leashes and light-up collars can also help to reduce your dog's anxiety.
As always, it's a good idea to speak to your vet if you're worried about your dog's behaviour.
"It is extremely important that the root cause of the problem is identified by an expert, and followed up with the right help, advice and reward-based training," Ryan advises.
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