Aided by hundreds of newly sequenced genomes and an extensive database of dog DNA, researchers were able to glean details about Balto’s size, appearance, and stamina not captured in historical photos of the famed canine.
.) Now, researchers have pieced together a fuller picture of the celebrated canine from DNA taken from the underbelly of his stuffed, faded carcass. Aided by hundreds of newly sequenced genomes and an extensive database of dog DNA, they were able to glean details about Balto’s size, appearance, and stamina not captured in historical photos of the famed canine.
But Shapiro and her postdoc, Katie Moon, also wanted to know what this new resource could reveal about individuals. So, they sequenced DNA from a pencil eraser–size tissue sample from the 100-year-old sun-bleached belly of the stuffed Balto, who is on display at the Cleveland Museum of Natural History.
From Balto’s DNA, Morrill, Moon, and their colleagues determined that he was a relatively small sled dog. At 55 centimeters at the shoulders, he was smaller than most Siberian huskies and Alaska malamutes, sled dogs later recognized as American Kennel Club breeds. They also predicted that Balto would have had a double layer of black fur twinged with tan; modern sled dogs tend to have just a single layer. All of this matched up with and further clarified the dog’s actual appearance, Moon says.
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