ACBS 160D1 Lecture Notes - Lecture 13: Canidae, Zygosity
25 Sep 2016
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Document Summary
Genetic data from modern wolves and dogs and archaeological evidence confirm that dogs arise from species. Domesticated dogs-with the morphological skeletal and dental features of present domesticated dogs- appear by 15-12,000 bp in different parts of eurasia and soon thereafter in north america. Shorter snout, smaller teeth, braincase smaller in domesticated dogs. Three distinct sized dogs at 8,000 bp from denmark. Before humans mastered selective breeding techniques, distict dog lineages appeared in different geographic regions through self-selection (self domestication) Humans in different parts of eurasia developed diverse needs for dogs (hunting, transport, protection, herding) Through self selection over several hundred years human needs became match to the relevant dog characteristics (running speed, body size, scent detection) Difficult to keep wild canids (wolves and related carnivores) from opportunistically interbreeding with the self-domesticated breeds so long as humans were mobile hunter- gatherers. Numerous small dogs found in archeological sites in france dated to 15,000-11,000 bp.
