Humans have used dogs for about a thousand years. Their innate skills and extraordinary senses proved valuable assets that helped humans long ago with hunting. They have also been trained to serve as protectors. Thus, some of our ancestors might only have survived for a short time without the companionship of their well-trained dogs.
Humans recognize a dog’s loyalty to its master despite differences in our culture and beliefs. It is also believed that dogs can sense their owner’s behavior. When the bond is strong between the dog and the master, the dog can sense its owner’s departure an hour before his master leaves. Likewise, there are instances when the dog will wag its tail while facing the door, signaling that its master is returning.


As time passed, technology has advanced exponentially. These technologies, particularly those concerning medicine, have been used together with dogs. They proved to be valuable assets in the early detection of cancer. We use dogs to aid in detecting cancers of the bladder, breast, and lungs. Dogs can pull such a feat mainly because of their extraordinary senses. Studies conducted by scientists proved that cancer cells always have a slight but distinct odor.
Dogs can differentiate various smells. Their sense of smell is ten thousand times more precise than a human’s, so they can differentiate multiple smells. Thus, dogs are the perfect candidates to detect different ailments using their smell.
Besides their incredible senses, dogs also perceive their surroundings highly. For instance, a dog can recognize its owner’s feelings just by staring at him. It can detect something wrong by looking at its owner’s face. This ability is known as the “left gaze bias.”


This can be explained by how the brain works. The brain’s left hemisphere processes human emotions and controls the muscles on the right side of the body. This means that the right side of the frame shows our feelings. Even if we conceal them, dogs will still perceive even the tiniest trace of them.
Once adopted, dogs are conventionally considered part of the family. They can feel the care their owners give them and get attached to those who make them feel important. Dogs also show their gratitude by cheering up their owners when they notice that they’re tired.
However, no matter how attached we become to our beloved dogs, there will eventually be a time when we will outlive them. Dogs have an expected life span of only 15 to 20 years. This means the time will come when we witness our dogs pass on to their next life.
We can only take our time with our dogs and live our lives to the fullest. We should appreciate the care that our dogs show us. We should also cherish our strong bond with them, even if our experiences with them will only become a part of our memory.

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