Pet body language signals

Pet Body Language Signals

Look up specific dog and cat body language signals, what they usually mean, risk level, and what to do next.

Want the full picture behind these cues? See the full whale eye and calming-signals guides.

Dog stress signals

Dog Whale Eye

Whale eye is a dog's request for space — an early rung on the bite ladder. Learn the 4 triggers, the harmless look-alike, and the rule that keeps kids safe.

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Dog Calming Signal

Dog Lip Licking

Dog lip licking is usually a stress or calming signal, not illness, but repeated licking with no food or drooling can mean nausea. See how to tell.

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Dog Stress Signal

Dog Yawning

Dog yawning is not always tiredness. Learn when yawning is a stress signal, calming signal, or possible health clue.

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Dog Fear Signal

Dog Tucked Tail

A tucked tail can mean fear, stress, pain, or appeasement. Learn how to read tail position with the rest of the dog's body.

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Dog Risk Signal

Dog Stiff Body

A stiff dog body or freeze can be a serious warning sign before growling, snapping, or biting. Learn how to respond safely.

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Cat Stress Signal

Cat Flat Ears

Cat ears back can mean fear, irritation, defensive aggression, or pain. Read the eyes, tail, and posture together to know if it is safe to approach now.

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Cat Fear Signal

Cat Puffed Tail

A puffed-up cat tail means fear or sudden arousal, not aggression by default. Learn why it happens and how to give space before a scratch or swat.

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Cat Arousal Signal

Cat Dilated Pupils

Cat dilated pupils can mean low light, play, fear, pain, or illness. Learn how to separate normal eye changes from warning signs.

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Cat Behavior Signal

Cat Hiding

Cat hiding can be normal coping, but sudden or prolonged hiding can signal stress, fear, pain, or illness. Learn what to check.

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Cat Trust Signal

Cat Slow Blink

Cat slow blinking is often a relaxed trust signal, but context still matters. Learn when it is friendly and when to check for eye discomfort.

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Dog Warning Signal

Dog Panting at Rest

Dog panting at rest can signal heat, stress, pain, breathing strain, or illness. Learn what body-language cues make it more urgent.

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Cat eye signals

Cat Whale Eye

Cat whale eye usually means fear and a need for space, but it can also be a harmless side-glance — or an eye problem that needs a vet. Here's how to tell.

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Dog mouth signals

Dog Opening and Closing Mouth Repeatedly

There are 4 reasons a dog keeps opening and closing its mouth — 3 harmless, 1 needs a vet today. Learn the difference, or check a photo free with AI.

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Cat tail signals

Scared Cat Tail

A scared cat's tail takes one of 4 distinct positions, and each reveals a different level of fear. Learn to spot the one that means back off right now.

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Dog ear signals

Dog Ears Pinned Back

Dog ears pinned flat usually mean fear or appeasement, not aggression. Learn to read the rest of the body, breed exceptions, and when to get help.

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Dog face signals

Dog Showing Teeth

Is your dog showing teeth a friendly submissive grin or an aggressive snarl? Use the loose-vs-stiff test to tell them apart safely and know what to do.

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Dog play signals

Dog Play Bow

A dog play bow (front end down, butt up) is the universal "let's play!" invitation. Learn how to tell friendly play from a stretch or aggression.

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Dog health signals

Dog Shaking and Trembling

There are 6 common reasons a dog shakes or trembles. Three are harmless, two need a vet visit, and one, possible poisoning, is an emergency. Here's how to tell.

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Dog restlessness signals

Dog Pacing and Won't Settle

Why a dog paces and won't settle: anxiety, unmet needs, pain, or cognitive decline — and how to spot bloat, the one emergency that cannot wait until morning.

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Dog health signals

Dog Head Pressing

A dog leaning its head into you is usually affection. A dog pressing its head into a wall and standing there is an emergency. Learn to tell them apart fast.

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Dog breathing signals

Dog Reverse Sneezing

Most reverse sneezing is harmless and over in 60 seconds. Here's how to spot the 3 common triggers and the 4 lookalike sounds that do need a vet.

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Dog health signals

Dog Shaking Head Constantly

There are 5 common reasons a dog keeps shaking its head, and the ears can look perfectly clean. Here's how to tell a simple itch from a same-day vet problem.

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Cat health signals

Cat Breathing Fast

Four reasons a cat breathes fast are harmless; five need a vet. A 30-second breath count while your cat sleeps tells you which side you're on.

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Cat tail signals

Cat Wagging Tail While Lying Down

A cat flicking its tail while lying down sends one of 4 messages, from relaxed watching to a bite warning. Learn the speed cue that tells them apart.

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Cat hunting signals

Cat Chattering at Birds

Window chattering at birds is normal hunting excitement — 3 theories explain it. Teeth chattering while eating is not; that one needs a vet.

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Dog behavior signals

Dog Staring at the Wall

There are 5 reasons a dog stares at the wall — 3 are usually harmless, 2 need a vet. Learn to tell them apart, or check a short clip free with AI.

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Want to check your own pet?

These pages explain common patterns. PetSignalAI can analyze your actual dog or cat photo and highlight visible signals in context.