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The first gray wolf (Canis Lupis) was discovered sometime in the early Pleistocene period, about a million years ago.
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The first ever evidence of a domesticated dog was a small jaw bone found in a cave located in Iraq. The jaw had differed from a wolves, the jaw was much smaller, and so were the teeth. The bone was found about 12-14,000 years ago.
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In 3500 BC we discovered that dogs had the ability to distinguish the directional origin of a noise. This adaption was very helpful in the hunting of animals for food.
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Dogs and dog harnesses were used to pull sleds full of people beginning in 1,980 BC. The dog sleds were used as transportation for the Native people. The sleds were used through the snow.
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Dogs were domesticated between the years of 14-30,000 BC. The location of where the dog was domesticated is still unknown.
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During the first century, Military dogs emerged. Dogs began to be specially breed and sold for the Russian military.
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The extinction of the English White Terrier happened in 1894. Many other dog breeds have also became extinct, some include, The Talbot, Wooly dogs, The Russian Newfoundland, and the Tweed Water Spaniel.
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In 1899 dogs began training to be police dogs. The dogs were trained the same way human-trafficking scent hounds had been trained.
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Therapy dogs became official in 1960. These well trained dogs provided company happiness to thousands of people suffering mental illness.
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In 2010 scientists found out that dogs are able to sniff out many diseases in humans, some include malaria and cancer.
