15 Answers to Your Biggest Dog Questions - iHeartDogs.com

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15 Answers to Your Biggest Dog Questions

By: Justin Palmer, Certified Pet Nutrition Expert
Justin Palmer is a Certified Pet Food Nutrition Specialist and co-founder of iHeartDogs.com. Inspired by his rescued husky, Splash, he dedicated himself to learning about extending both the length and quality of her life. Splash lived and thrived until 18 years old, and now Justin is on a mission to share what he learned with other dog owners.Read more
| June 6, 2025
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Dogs are fascinating, loyal companions, and they often leave us scratching our heads with their quirky behaviors and health mysteries. From curious habits like eating grass to the science behind their wagging tails, there’s a lot to learn about our four-legged friends. Below, we tackle some of the most common questions people have about dogs, giving you insight into their world and helping you better care for your beloved pup.

Why Do Dogs Eat Grass?

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Many dogs munch on grass, leaving their humans puzzled. Experts suggest that grass eating might help with digestion or fulfill a nutritional need, though it’s rarely a cause for concern unless it’s excessive. Some dogs simply enjoy the texture and taste of fresh grass. Keep an eye on your pup’s grass-eating habits, as sudden changes or vomiting could signal an underlying health issue.

How Long Are Dogs Pregnant?

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A dog’s pregnancy typically lasts between 58 and 68 days, averaging about 63 days. This relatively short gestation period means that puppies develop quickly inside the womb. Owners should be aware of signs of pregnancy, like increased appetite, behavioral changes, and enlarged nipples. Regular vet check-ups ensure a smooth pregnancy and delivery.

Why Do Dogs Lick You?

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Dog kisses can mean different things depending on the context. Licking is often a sign of affection, a way to greet you, or a method of gathering information through taste and scent. It can also be a way for your dog to get your attention. If licking becomes excessive, it could indicate stress or a medical issue.

Why Do Dogs Eat Poop?

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As gross as it sounds, dogs eating poop known as coprophagia can happen for several reasons. Stress, boredom, or learned behaviors from mother dogs cleaning their puppies might contribute. Nutritional deficiencies could also drive this behavior. Ensuring a balanced diet and mental stimulation can help curb this unpleasant habit.

What Colors Can Dogs See?

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Unlike humans, dogs see a limited color spectrum. They perceive mostly shades of blue and yellow, while reds and greens appear grayish. This doesn’t stop them from appreciating colorful toys and treats, though! Understanding their vision helps in choosing toys that are easier for them to spot during playtime.

How to Trim Dog Nails

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Nail trimming is essential for a dog’s comfort and health. Long nails can cause pain or even lead to joint issues. Use a quality nail clipper or grinder, and trim just a little at a time to avoid cutting the quick, which can cause bleeding and pain. Go slow and be patient. You’re dog can sense your energy, so keep it positive. If you’re unsure, ask a vet or groomer for a demonstration. Tip: Reward pups with treats so they associate the nail trim with something good.

Why Is My Dog Shaking?

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A shaking dog can be alarming, but it’s often a normal reaction to excitement, cold, or stress. However, persistent shaking might indicate pain, anxiety, or even a medical problem like poisoning or neurological issues. If your dog’s shaking seems excessive or is accompanied by other symptoms, a vet visit is a good idea. Early detection of underlying issues can make a big difference.

How Long Do Dogs Live?

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A dog’s lifespan varies greatly by breed, size, and genetics. Smaller breeds often live longer than larger ones, with an average lifespan of 10 to 13 years. Good nutrition, exercise, and regular vet visits can extend your dog’s life. Cherish every moment with your canine companion, as their time with us is precious.

What Fruits Can Dogs Eat?

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While some fruits are safe for dogs, others are toxic. Apples, blueberries, and bananas are generally healthy in moderation, while grapes and raisins should be avoided. Always remove seeds and pits to prevent choking or poisoning. Fruits can be a tasty, nutritious treat that adds variety to your dog’s diet.

How Old Is My Dog?

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Determining a dog’s age can be tricky, especially with adopted or rescued dogs. Vets estimate age based on teeth, eyes, and coat condition. Dental health and activity levels also provide clues. While the classic “one dog year equals seven human years” is a rough estimate, age can vary widely by breed.

Why Do Dogs Wag Their Tails?

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Tail wagging is a form of communication in the dog world. A wagging tail can mean happiness and excitement, but the speed and position of the wag can also indicate anxiety or caution. Observing the rest of your dog’s body language helps decode what they’re feeling. A wagging tail is just one piece of their emotional puzzle.

Why Do Dogs Howl?

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Dogs howl to communicate, often in response to sounds like sirens or music. It’s a throwback to their wolf ancestors, who howled to signal location and emotions. Some dogs howl when they’re lonely or anxious. If howling becomes excessive, it’s important to address any underlying issues, such as separation anxiety.

Why Is Chocolate Bad for Dogs?

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Chocolate contains theobromine, a chemical that’s toxic to dogs. Even small amounts can cause vomiting, diarrhea, rapid heart rate, and seizures. Dark chocolate and baking chocolate are especially dangerous. If your dog ingests chocolate, seek immediate veterinary care to prevent serious health problems.

Why Are Dogs’ Noses Wet?

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A dog’s wet nose serves multiple purposes. It enhances their sense of smell, which is crucial for navigating their environment. It also helps regulate body temperature, as moisture evaporates from the nose and cools it down. A consistently dry nose isn’t always a problem, but sudden changes could signal dehydration or illness.

Do Dogs Dream?

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Yes, dogs do dream, just like humans. During REM sleep, dogs may twitch, whimper, or move their legs as they act out their dreams. These dreams often reflect their daily activities and experiences. Watching your dog dream can be an adorable reminder of their playful and curious nature.

Your Dog Curiosities Revealed

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Understanding your dog’s behaviors and health quirks deepens the bond you share with them. From decoding their tail wags to knowing why they eat grass, every insight brings you closer to your furry friend. Stay curious, keep learning, and embrace the adventure of sharing your life with a loyal, loving dog. Here’s to many happy tail wags ahead!

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