考古学家和遗传学家的研究表明，人类与狗在过去约15,000年中相互塑造了彼此的进化轨迹[1]。根据考古发现，狗在14,000年前就已被埋葬在人类墓穴旁边，反映出这一深厚的历史联系[1]。考古学家彼得·米切尔在其新著《第一批狗：史前至现在的狩猎采集者与其犬类伙伴》中指出，人类与狼最初可能是相对平等的伙伴关系[1]。
这一共同进化过程在全球各地留下了不同的痕迹。在藏区高原地区，当地的狗与人类发展出相似的遗传适应，使其能够在低氧条件下生存[1]。北极狗的骨骼遗迹显示脊椎和肢骨存在特殊的应力模式，表明它们已适应拉重物的劳动[1]。稳定同位素研究进一步揭示，在沿海地区，人类和狗通常共享以海洋食物为主的相似饮食[1]。北美西北海岸的某些土著社区特别饲养小型羊毛犬用于纺织品生产[1]。
疾病环境也塑造了犬类的全球分布。撒哈拉以南非洲的锥虫病和埃立克体病等疾病可能限制了狗在该地区的传播和生存[1]。欧洲殖民扩张期间，欧洲犬种替代了许多古老犬系，尽管古代狗的遗传痕迹仍然存在于现代犬群中[1]。
Archaeological and genetic research reveals that humans and dogs have undergone a profound process of mutual transformation over approximately 15,000 years [1]. Dogs evolved from early hunting-and-gathering companions into a diverse array of specialized breeds adapted to vastly different environments, ranging from Arctic sled dogs to tropical rainforest hunters [1]. This coevolutionary journey was driven by multiple factors including environmental adaptation, cultural selection, and disease constraints [1].
The deep partnership between the two species is documented in the archaeological record, with evidence showing dogs being buried alongside humans as early as 14,000 years ago [1]. According to archaeologist Peter Mitchell, author of "First Dogs: Hunter-Gatherers and their Canine Companions from Prehistory to the Present," the initial relationship between humans and wolves was likely relatively egalitarian [1]. In Tibetan highland regions, local dogs developed genetic adaptations similar to those found in human populations, allowing both species to thrive in low-oxygen environments [1]. Arctic dog skeletal remains display distinctive stress patterns in vertebrae and limb bones, indicating adaptation to hauling heavy loads [1].
The interconnectedness of human and canine diets is illustrated through stable isotope studies showing that in coastal areas, humans and dogs typically consumed similar marine-based diets [1]. Some indigenous communities along the North American northwest coast specifically bred small woolly dogs for textile production [1]. Disease also played a limiting role in canine distribution; sub-Saharan African diseases such as trypanosomiasis and ehrlichiosis restricted dog populations and survival in those regions [1]. During European colonial expansion, European dog breeds displaced many ancient canine lineages, though genetic traces of ancient dogs persist in modern populations [1].