Why Do Cats and Dogs Do That? Understanding Common Pet Behaviors

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dog and cat, decode your pet's behavior

Decoding Strange Pet Behaviors for a Happier Home

Written By: Catherine Boeckmann Executive Digital Editor and Master Gardener
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Ever wonder why your dog munches on grass or why your cat rubs against your legs? Many common pet behaviors seem puzzling, but most are rooted in instinct, communication, or boredom. By understanding what your cat or dog is trying to tell you, you can provide better care, reduce stress, and strengthen your bond with your furry companion.

Why Do Cats and Dogs Eat Grass?

Many cats and dogs will occasionally chew on grass and then vomit afterward. While the exact reason is unknown, some veterinarians believe it helps purge unpleasant substances from their digestive system. Others suggest pets simply enjoy the taste. Grass-eating is generally harmless unless the area has been treated with fertilizers or pesticides.

cute siberian husky puppy in a meadow eating grass
Photo: REN Photography

Keeping Pets Entertained at Home

If your pet spends long hours alone, boredom and loneliness can affect their behavior. To keep indoor cats and dogs engaged, try:

  • Playing music or leaving the TV on.
  • Providing a bird feeder near a window for visual stimulation.
  • Using an aquarium with a secure lid for cats.
  • Offering chew toys for dogs to prevent destructive habits.
  • Calling home during the day to interact via the answering machine.

When Pets Get the Blues

Cats and dogs can experience depression similar to humans. Illness, isolation, lack of exercise, or big lifestyle changes like moving can trigger mood changes. Watch for signs such as a cat skipping meals for over 36 hours or a dog refusing food for 48 hours—these require a vet’s attention.

Helpful ways to lift your pet’s spirits include:

  • Daily play and vigorous walks outdoors.
  • Mirrors to reduce loneliness.
  • Including pets in family activities.
  • Playing calming music, especially classical.
  • Socialization with other pets at parks or daycare.
  • Providing outdoor visual stimulation, like bird feeders or window perches for cats.

Why Cats Do the Things They Do

Catnip Behavior

Response to catnip varies. Kittens under three months often ignore it. Males, especially unneutered, react more strongly because catnip mimics chemicals in female cat urine. The active ingredient is nepatalactone.

Rubbing and Marking

Cats rub against people or objects to mark territory using scent glands on their face and body.

Climbing and Tree Troubles

Cats may climb but hesitate to come down due to fear of falling or observing commotion below. Usually, they descend on their own within a day; prolonged stuck situations may require rescue.

tabby cat climbing a tree
Photo: Adrian Eugen Ciobaniuc

Are you a cat person? See how old your cat is in people years with our Cat Age Calculator.

Why Dogs Do the Things They Do

Understanding Barking

Dogs communicate through barks and whines:

  • Whining between barks: anxiety or separation stress.
  • Continuous barking: boredom.
  • Playful barking: excitement.

Fear of Loud Noises

Thunderstorms, fireworks, and other loud sounds can frighten dogs. Provide a small, comfortable space like a crate or covered area. Relaxing music may help calm them during storms.

Do you love your dog? Find out their true age with our Dog Age Calculator.

By observing and interpreting these behaviors, you can better meet your pet’s physical and emotional needs while building a happier, healthier relationship.

About The Author
Catherine Boeckmann

Catherine Boeckmann

Executive Digital Editor and Master Gardener

Catherine Boeckmann is the Executive Digital Editor of Almanac.com, the website companion of The Old Farmer's Almanac. She covers gardening, plants, pest control, soil composition, seasonal and moon c...