You would have already found out what this article is about. Yes, it is about dogs known as the man’s best friend. Most of the people belong to the canine loving world whereas some are not. This is not to debate whether people should love dogs or not but rather to understand them. Let us know more about the unconditionally loving animal.

Evolution of Dogs

Thousands of years ago, there were no dogs. Like humans who evolved from great apes, dogs evolved from grey wolfs. Early humans between 20,000 and 40,000 years ago domesticated dogs and dogs are the first-ever species to be domesticated. But the details surrounding dogs origins are still unclear. When humans were hunters and gatherers who killed animals with their ability to use weapons made of stones they were more likely to get more food. The wolves began trailing ancient hunter-gatherers to snack on their garbage. Eventually, the wolves became used to it and started becoming obedient.

Humans gave them food and used them to hunt other animals and also protect themselves from other creatures. Those wolves survived better and passed on their genes to the next generation. Over time the wolves changed in body and temperament. Their skulls, teeth and paws shrank. The gained a docile disposition and became less frightening and less fearful. From there the man’s best friend originated.

The Amazing Sense of Smell

For dogs, breathing is different from smelling. Dogs not just can sniff drugs and bombs as shown in movies but also detect cancer, low blood sugar and seizures. Yes, in studies dogs were able to identify 30 cases of prostate cancer by smelling the urine samples. Their sense of smell is ten thousand to ten million times more than that of humans depending on the breed. A fluid secreted from their nose helps them smell by capturing scent chemicals in a thin layer of wet mucous on their nose. A small fold of tissue called alar fold separates the flow of air depending on whether they are sniffing or breathing. This can also help them pick up pheromones that are a chemical substance produced and released into the environment by an animal so that they can locate mates.

Are Dogs Colour Blind?

Dogs are not completely colour blind. Like humans who have three colour receptors, dogs have only two colour receptors. So they could not distinguish colours like red and green because their brains don’t interpret them and remain grey but they could see black, white, blue and yellow.

Meaning Behind What They Do

  • Side Sleeping: An act of showing that the dog loves and trusts you.
  • Staring at you: Dog needs your affection.
  • Intense Eye contact: Dog is trying to understand what you want by seeing your expressions.
  • Relaxed tail, open mouth, high ears: Relaxed and secured. Best time to approach stranger dogs.
  • Pointed tail: Dog is curious about something.
  • Loose tongue: Dog is happy and it never cares about anything.
  • Baring teeth, Snarling: Sure sign of anger and aggression. Better to stay away.
  • Raising Bark: Wants to play and cannot control the excitement.
  • Low Growl: Dog is anxious or scared.
  • Bringing Gifts: When your dog brings some shoes or other things it is a way of showing love.
  • Licking: Realising its stress and showing you love.
  • Sleeping in your Bed: Dog wants to be a part of you.
  • Chasing own Tail: Dog is bored and entertaining himself.
  • Butt Sniffing another dog: Saying Hello in their own way.
  • Raising leg after poop: Releasing pheromones to make other dogs know that this is my area.
  • Eating grass: Dog is thirsty, not hungry.
  • Mouth open, wagging tail: Having a lot of fun right now and it is thanking you.

A dog is the only thing on earth that loves you more than you love yourself.

-Josh Billings

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