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Dogs are one of the most popular pets among us. They are often called human best friends because dogs help humans in many ways; dogs make us feel loved and happy, help us meet new people and make friends, relieve stress, support our heart health, and make us more social.
The dogs were first domesticated during the last ice age; about 23000 years ago, the grey wolf domesticated in Siberia for the first time. Over the years, humans have seen that some dogs are better suited for specific traits. Some are good hunters like JACK RUSSELL TERRIER, some are good herders like SHEEPDOGS, and some are good guards like DOBERMAN. So humans started selectively breeding the dogs according to their traits, which is how dog breeds came to be.
Dogs have very good senses. They have an excellent sense of smell which has made dogs good at tracking and sniffing out illegal items. Some dogs are specifically bred to increase their sense of smell. Dogs also have an excellent field of vision, allowing them to see almost in a complete circle. Their hearing is very sensitive as well and has an extensive frequency range. This enables dogs to hear sounds that are much higher than humans. Their great hearing makes them good guard dogs.
Since becoming man’s best friend, dogs have become emotionally bonded to us since the early days. Many dogs pick up on our moods and can tell when we are sad or angry; we understand dogs in return. We can read their expressions and tell when they’re scared, upset, or joyful.