Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Why Do Dogs Side Eye? Vet-Approved Behavior Explanation

Skeptic sad Border Collie leaning on the fence

Life would be so much easier if our dogs could tell us everything they’re thinking and feeling. But until science finds a way for us to communicate with our pets, we just have to get good at reading their body language and facial expressions.

The side eye is an interesting facial expression that can have many different meanings. While sidelong glances in humans are often used to convey emotions like skepticism, disbelief, or disapproval, it’s not quite the same in dogs. The side eye can mean anything from “Back off, I’m about to attack” to “That was fun, Mom! Let’s play again!”

Read on to find out why your pup is giving you the side eye.

divider dog paws 4 oct 2024

The 4 Reasons Why Dogs Side Eye

1. They’re Anxious or Stressed

The side-eye glance is sometimes also called “whale eye” in dog circles. “Whale eye” may not be a term you’re familiar with, but as a dog owner, you should be. This expression causes the whites of your dog’s eye (sclera) to show. It occurs when your pup turns their head away from something or someone but keeps their eyes locked on the object or person.

A dog exhibiting whale eye is typically anxious or uncomfortable. They may be feeling stress or fear. It can also be a sign that your pup may become defensively aggressive, as nervous, fearful, or stressed dogs may be more likely to bite. The expression is almost always paired with other body signals of stress like lip-licking, hair standing on end, growling, or freezing in place.

They make this expression for numerous reasons, so context can make a world of difference when determining why your pup is whale-eyeing you. Common triggers for whale eye include:

  • Resource guarding of food or toys
  • Meeting new people
  • Meeting new animals
  • Being in unfamiliar places
  • Being approached or touched in a way they don’t like
A girl is laying outside in the grass, tenderly hugging her aging German Shepherd mix dog with her eyes closed
Image Credit: Christin Lola, Shutterstock

2. They’re Curious

The sideways glance can also indicate that your pup saw something intriguing or heard a new noise. Their side-eye could allow them to see things better or get your attention without moving too much. Curious dogs will exhibit other body postures like perked-up and forward ears and tilted heads.


3. They’re Playing

The side eye can also indicate playfulness or excitement. This is especially true when other loose body language and gestures, such as a wagging tail or playful bowing, accompany the expression.

Anxious looking American Pitbull isolated
Image Credit: sophiecat, Shutterstock

4. They’re Just Glancing

Sometimes, the sideways glance is just that: a sideways glance.

Dogster divider_v1_NEW_MAY_24_

What Should I Do if My Dog Gives Me the Side-Eye?

Before reacting, consider the context of the gesture as well as your pup’s other body language.

If your dog is exhibiting other signs that they’re clearly stressed or anxious, identify the trigger. Is there another dog nearby? A stranger in the vicinity? Is someone (or something) bugging them? Take stock of your pup’s surroundings and environment to get clues into what they’re feeling. Once you know what the trigger is, try to safely remove your pet from the threatening situation.

For example, a dog that doesn’t do well around other dogs may show the whale eye if they’re being approached by a strange dog while on a walk. The trigger in this scenario is the unfamiliar animal. You can help relieve your pet of their anxiety and stress by giving them space away from the other dog by crossing the street or turning and walking in the other direction.

Are you in the middle of a rousing play session, and your pup starts giving you the side eye accompanied by playful bowing and a big, silly, open-mouthed grin? If so, chances are your dog is probably just excited about getting to play with you.

TLDR: Pay very close attention to your dog’s body language, behavior, and context to determine the cause of the sideways glance. You can only react appropriately once you know what your dog is feeling.

person petting a chocolate labrador dog
Image Credit: My July, Shutterstock

divider dog paws 4 oct 2024

Final Thoughts

The side-eye glance in dogs can mean many different things. Almost all dog body language and facial expressions are context-driven, so consider your pup’s behavior in the context of their environment.

If your dog is looking at you with a sideways glance but has an otherwise positive body posture, this is likely not whale eye. They could be feeling playful, curious, or just giving you a harmless glance. However, if your dog’s side-eye is accompanied by other body language that conveys stress or anxiety, it could be whale eye, and you must react appropriately to defuse the situation.


Featured Image Credit: SakSa, Shutterstock

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Is Dog Breeding Profitable? Vet-Verified Info & Ethics Guide

Using terms like “profit” with “dog breeding” often causes controversy and for a good reason! With the prevalence of puppy mills and overbreeding,...

What Is A Normal Temperature For A Dog? Vet-Verified Health Facts & FAQ

Dogs normally have rectal temperatures that fall between 99.5° F and 102.5° F 1. A few factors, including level of activity, age, and...

Adopting an Older Puppy: 9 Vet-Verified Pros & Cons

So, you’ve decided to add a puppy to your family? How exciting! Puppies are so adorable and rewarding, but they’re also extremely challenging....

My Cat Is Bullying My Dog: 9 Vet-Approved Tips to Stop Them

Having a multi-pet household comes with unique challenges, especially if you have a mix of pets like cats and dogs. One of the...

More related

How Cold Is Too Cold for a Pitbull? Signs, Risks & Safety

If your Pitbull loves the freedom of being outside in your yard or going on walks with you in the park, little will...

How to Report Dog Abuse: 6 Things You Can Do to Help

It’s very disturbing and heartbreaking when you encounter dog abuse, like if you see your neighbor hitting their dog or know a malnourished...

Why Is My Female Dog Peeing on the Bed All of a Sudden? 8 Vet-Reviewed Reasons

It can be confusing and unexpected for your fully housetrained dog to start having accidents in the house. It’s especially unsettling if your...

Pekingese Dog Breed: Info, Pictures, Facts, Traits & Care

The Pekingese dog breed is a small lion-like breed with a history extending back to ancient times. They are getting more popular each...

Keep reading

Can Dog Food Cause Urinary Incontinence? Vet Approved Facts & FAQ

Witnessing a dog suffer from urinary incontinence is difficult for a pet owner. Knowing that your pet is dealing with an issue, that in some cases isn’t treatable, is heart-wrenching. While a trip to the vet is necessary when this...

Dog Pee Rug

Can Dogs Have Almond Milk? Vet-Verified Nutrition & Health Facts

Lactose intolerance is common in adult dogs, so it’s not recommended for them to consume dairy milk. Fortunately, your dog can enjoy many different alternatives, including almond milk, in moderation. In general, almond milk is safe for dogs to drink,...

a glass of Almond milk surrounded with almonds

11 Best Senior Dog Foods in 2025 – Reviews & Top Picks

You’ll start to notice as your puppy grows to adulthood and beyond that, just like humans, their body starts to slow down and wear out. Once that starts happening, pet owners know that the senior years have started. It may...

dog eating

Can Dogs Eat Kimchi? Vet-Approved Nutrition Facts

Every day, you sit down at some point to munch on your food. As you move your hands for the first bite, you see your dog staring at you with those puppy eyes, begging for a taste. You have no...

Can Dogs Eat_Kimchi

15 Foods With Vitamin E for Dogs: Vet-Approved Options

Vitamin E is an essential vitamin for canines. It is an antioxidant that helps clear free radicals from your dog’s body, supports vision, promotes healthy bone growth, helps the reproductive system function, and supports the immune system. Their food should...

english bulldog eating pumpkin

Can Dogs Eat Cream of Wheat? Vet-Approved Nutrition Facts & FAQ

The grain-free diet craze is dying down among pet owners, leading some to wonder if dogs can eat grain products like Cream of Wheat. While it’s best to avoid table food for your dog and stick to a balanced commercial...

Can Dogs Eat Cream of Wheat

Can Dogs Eat Octopus? Vet-Approved Nutrition Info & Risks

Octopus isn’t a common household food, but if you have some in your home, you might be wondering if it’s a healthy option for your dog. The truth is that while octopus is generally healthy and safe for dogs, it...

Can Dogs Eat_octopus

Can Dogs Eat Flan? Vet-Reviewed Potential Risks & Safety Guide

Flan is a custard-like dessert that can contain several ingredients. However, it typically contains eggs, milk, and sugar. While dogs can eat a small amount of dairy products like flan, it isn’t recommended. While flan isn’t toxic, it isn’t usually...

Can Dogs Eat Flan