Archaeologists in China's Taklamakan Desert uncovered 3,000-year-old mummies with bright red hair, tartan-style leggings, and twill tunics that looked like they belonged in ancient Scotland. For decades, these bodies fueled wild migration theories and bitter nationalist debates.

This deep dive follows the Tarim mummies from their stunning discovery to a groundbreaking DNA study that flipped everything on its head. It is a story about how genetics, climate, and culture intertwine, and why you cannot assume the DNA of a person matches the geographic origin of their clothing.

• How extreme dryness and high salt naturally preserved hair, tattoos, and delicate textiles for millennia
• Iconic finds like the Beauty of Loulan and the Cherchen Man with his red twill tunic and tartan leggings
• Victor Mair's Western migration the ...