17 Facts About Domestic dog

The dog was the first species to be domesticated, by hunter-gatherers over 15,000 years ago, before the development of agriculture.

Domestic dog classified the domestic dog as Canis familiaris and, on the next page, classified the grey wolf as Canis lupus.

Linnaeus considered the Domestic dog to be a separate species from the wolf because of its upturning tail, which is not found in any other canid.

In 1999, a study of mitochondrial DNA indicated that the domestic dog may have originated from the grey wolf, with the dingo and New Guinea singing dog breeds having developed at a time when human communities were more isolated from each other.

The Domestic dog was dated to 14,223 years ago and was found buried along with a man and a woman, all three having been sprayed with red hematite powder and buried under large, thick basalt blocks.

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In 2021, a literature review of the current evidence infers that the dog was domesticated in Siberia 23,000 years ago by ancient North Siberians, then later dispersed eastward into the Americas and westward across Eurasia.

The Domestic dog's skeleton is well adapted for running; the vertebrae on the neck and back have extensions for powerful back muscles to connect to, the long ribs provide plenty of room for the heart and lungs, and the shoulders are unattached to the skeleton allowing great flexibility.

Some genes have been associated with aggression in some dog breeds, indicating their importance in both the initial domestication and later in breed formation.

Domestic dog inferred the names of novel things by exclusion learning and correctly retrieved those new items immediately and four weeks after the initial exposure.

Domestic dog had learned the names and could associate by verbal command over 1,000 words.

In 2013, the estimated global Domestic dog population was between 700 million and 987 million.

Similar to humans, some Domestic dog breeds produce amylase in their saliva and are classified as having a high starch diet.

Pet Domestic dog populations grew significantly after World War II as suburbanization increased.

The majority of contemporary Domestic dog owners describe their pet as part of the family, although some ambivalence about the relationship is evident in the popular reconceptualization of the Domestic dog-human family as a pack.

The idea of the "alpha Domestic dog" trying to be dominant is based on a disproved theory about wolf packs.

In 1957, the Domestic dog Laika became the first animal to be launched into Earth orbit, aboard the Soviets' Sputnik 2; she died during the flight.

Significant Domestic dog bites affect tens of millions of people globally each year.