DNA study deepens mystery of lake full of skeletons
Hundreds of bodies at Roopkund Lake belonged to pilgrims who perished in a Himalayan storm more than a thousand years ago—or so researchers thought.
Roopkund, a remote lake high in the Indian Himalaya, is home to one of archaeology’s spookiest mysteries: the skeletons of as many as 800 people. The most recent scientific study of those human remains, published in the journal Nature Communications in 2019, attempts to unravel what happened at “Skeleton Lake”—but the results raise more questions than answers.
In the early 2000s, preliminary DNA studies had suggested that the people who died at Roopkund were of South Asian ancestry, and radiocarbon dates from around the site cluster at 800 A.D., a sign that they all died in a single event.
The first full genomic analyses from 38 sets of skeletal remains now upends that story. The results reveal that there were 23 people with south Asian ancestry at Roopkund, but they died during one or several events between the 7th and 10th centuries A.D. What’s more, the Roopkund skeletons contain another group of 14 victims who died there a thousand years later—likely in a single event.
And unlike the earlier South Asian skeletons, the later group who arrived at Roopkund around 1800 had a genetic ancestry tied to the Mediterranean—Greece and Crete, to be exact. (An additional individual, who died at the same time as the Mediterranean group, had east Asian ancestry.) None of the tested individuals were related to each other, and additional isotopic studies confirm that the South Asian and Mediterranean groups ate different diets.
Why was a Mediterranean group at Roopkund, and how did they meet their end? Researchers don’t know and aren’t speculating.
“We have tried to answer all possible sources of genetic ancestries of [the] Roopkund skeletons but failed to answer why Mediterranean people were traveling to this lake and what they were doing here,” says study co-author Niraj Rai, an archaeogeneticist at the Birbal Sahni Institute of Palaeosciences in Lucknow, India.
A 'ghastly scene'
Roopkund’s strangeness unnerves even professionals. In the 1950s, one explorer described the site to an Indian radio station as a “ghastly scene that made us catch our breath.” And for decades, many scholars have tried to figure out who the men and women at Roopkund were and when they died.
The people’s cause of death has remained elusive. Death by battle is unlikely: The remains belong to both men and women, and no weapons or signs of combat violence have been found. The victims were also healthy when they died, which rules out a mass epidemic.
But what if a local folk song memorializes how the victims died? The song describes a royal procession during the Raj Jat—a pilgrimage held in the region every 12 years to worship the goddess Nanda Devi—that defiled the holy landscape with dancing girls. In response, an enraged Nanda Devi struck the group down with “iron balls” thrown from the sky.
One tantalizing possibility is that Roopkund victims were pilgrims who died during the Raj Jat after getting caught in a severe hailstorm. Parasols of a type used during the procession were reportedly found among the remains, and some individuals’ skulls bear unhealed fractures, perhaps a sign of large hailstones, the song’s lethal “iron balls.”
To check this scenario and others, an international team of researchers performed genomic analyses of the Roopkund remains. The team didn’t have expectations for who the people at Roopkund might have been, but signs of Mediterranean ancestry high in the Indian Himalaya came as a surprise.
“When we actually got the DNA back, it was super clear that some of these were not individuals with typical South Asian ancestry,” says Éadaoin Harney, study co-author and a researcher at Harvard’s department of organismic and evolutionary biology. “Definitely not something we were expecting at all.”
Did the Mediterranean group come for the Raj Jat pilgrimage and then stay at the lake long enough to meet their ends there? William Sax, head of Heidelberg University’s anthropology department and author of a book on the pilgrimage, says that this type of scenario “wouldn’t make any sense.”
Sax has made three trips to the lake, most recently in 2004 as part of a National Geographic television show, and says that modern pilgrims pay it little attention.
“When pilgrims get up to [Roopkund], they're scrambling because they have much farther to go, so they sort of stop and briefly show a bit of respect, if you will—but it's not and never has been terribly important for the pilgrimage itself,” he says. “It's kind of a dark and dirty place where you sort of nod your head and move on.”
Related Topics
You May Also Like
Go Further
Animals
- These are the weird reasons octopuses change shape and colorThese are the weird reasons octopuses change shape and color
- Why young scientists want you to care about 'scary' speciesWhy young scientists want you to care about 'scary' species
- What rising temperatures in the Gulf of Maine mean for wildlifeWhat rising temperatures in the Gulf of Maine mean for wildlife
- He’s called ‘omacha,’ a dolphin that transforms into a man. Why?He’s called ‘omacha,’ a dolphin that transforms into a man. Why?
- Behind the scenes at America’s biggest birding festivalBehind the scenes at America’s biggest birding festival
Environment
- What rising temperatures in the Gulf of Maine mean for wildlifeWhat rising temperatures in the Gulf of Maine mean for wildlife
- He’s called ‘omacha,’ a dolphin that transforms into a man. Why?He’s called ‘omacha,’ a dolphin that transforms into a man. Why?
- The northernmost flower living at the top of the worldThe northernmost flower living at the top of the world
- This beautiful floating flower is wreaking havoc on NigeriaThis beautiful floating flower is wreaking havoc on Nigeria
- What the Aral Sea might teach us about life after disasterWhat the Aral Sea might teach us about life after disaster
History & Culture
- Scientists find evidence of ancient waterway beside Egypt’s pyramidsScientists find evidence of ancient waterway beside Egypt’s pyramids
- This thriving society vanished into thin air. What happened?This thriving society vanished into thin air. What happened?
Science
- Why pickleball is so good for your body and your mindWhy pickleball is so good for your body and your mind
- Extreme heat can be deadly – here’s how to know if you’re at riskExtreme heat can be deadly – here’s how to know if you’re at risk
- Why dopamine drives you to do hard things—even without a rewardWhy dopamine drives you to do hard things—even without a reward
- What will astronauts use to drive across the Moon?What will astronauts use to drive across the Moon?
- Oral contraceptives may help lower the risk of sports injuriesOral contraceptives may help lower the risk of sports injuries
- How stressed are you? Answer these 10 questions to find out.
- Science
How stressed are you? Answer these 10 questions to find out.
Travel
- How to explore the highlights of Italy's dazzling Lake ComoHow to explore the highlights of Italy's dazzling Lake Como
- Going on a cruise? Here’s how to stay healthy onboardGoing on a cruise? Here’s how to stay healthy onboard
- What to see and do in Werfen, Austria's iconic destinationWhat to see and do in Werfen, Austria's iconic destination
- How to get front-row seats to an active volcano in GuatemalaHow to get front-row seats to an active volcano in Guatemala