Ice Age wolf genomes point to dog origins

Modern dogs probably evolved in eastern Eurasia — and might have been domesticated more than once. Researchers analysed 72 ancient wolf (Canis lupus) genomes spanning the last 100,000 years. They found that early dogs from northeastern Europe, Siberia and North America are closely related to ancient wolves from eastern Asia. However, some dogs from western Europe and Africa seem to have a genetic link to ancient wolves that lived farther west.