A millennium-long story about Greenland is written in the genes of the island’s sled dogs. A new genomic analysis, published July 10 in Science, suggests that humans (and their sled dogs) arrived in the region roughly 1,000 years ago — centuries earlier than previously thought. The results weave new threads into the story of humanity’s 20,000-year-long relationship with dogs, highlighting how through domestication, dogs mirror what humans value.
“If we have any curiosity about ourselves, about us as humans, we have to understand dogs,” says Audrey Lin, an evolutionary biologist at the American Museum of Natural History in New York City.
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