Famous Sled Dog Balto Had Surprisingly Diverse, Hardy Genome, Analysis Shows

Balto's genetic makeup was diverse and healthy compared to most modern dog breeds.
Balto's genome showed he was well adapted to harsh, cold environments required for sled dogs at the time.
Balto's genome was analyzed as part of a broader study examining the genomes of working sled dogs from the early 20th century.
Balto's greater genetic diversity and lack of inbreeding contributed to his good health and ability as a sled dog.
Balto had genes suited for starchy diets and cold temperatures that helped him endure subarctic conditions as a sled dog.