Buzz
Mysteries have a way of captivating us. We love to explore them through reading, watch documentaries about them, and attempt to crack their codes. Humanity has always been determined to unravel the unknown.
Over time, we’ve uncovered new insights into some of the world’s most perplexing mysteries and puzzles. While it's doubtful that history will ever disclose all its secrets, we’ve at least made significant strides in overcoming our collective ignorance.
10. The Extinction of Male Mammoths
In 2017, scientists claimed to have uncovered an explanation for a peculiar pattern in the fossil record: why nearly 70 percent of woolly mammoth remains were male. A team of researchers, led by the Swedish Museum of Natural History, concluded that although the gender ratio at birth was roughly even, it became imbalanced due to the social hierarchy and structure of mammoth communities.
Much like modern-day elephants, their woolly ancestors lived in herds headed by a seasoned matriarch. These groups were mainly composed of female mammoths and their calves. However, when males reached maturity, they were ousted from the group, either to live alone or to form bachelor groups. Lacking the protection of the herd and the guidance of the matriarch, these young males were more prone to engage in risky behaviors.
Although such behavior led to higher mortality rates, it also played a role in the preservation of their remains. Isolated male mammoths were more likely to succumb to natural death traps like sinkholes, bogs, and crevices. Their bodies were often preserved, shielded from the elements, unlike the remains of many other Ice Age animals, including those of their female counterparts.
9. The Disappearing Swiss Couple
One day, Marcelin Dumoulin and his wife, Francine, went to a meadow near the Swiss village of Chandolin to tend to their cows. They vanished without a trace for 75 years.
The Dumoulins disappeared on August 15, 1942. Their remains were eventually discovered in July 2017, when a retreating glacier exposed their frozen bodies. The ice had preserved their remains, and their personal belongings and identification papers were found intact. DNA testing later confirmed that the bodies belonged to Marcelin and Francine Dumoulin.
It seems that the couple had fallen into a crevasse, where they remained concealed for decades. As the Tsanfleuron Glacier melted, their bodies were revealed. Local authorities noted that such occurrences are not uncommon. Due to climate change, retreating glaciers have regularly uncovered the frozen remains of individuals who had disappeared years or even decades earlier.
8. The Discovery of the USS Indianapolis
In 1945, the sinking of the USS Indianapolis resulted in the highest number of casualties from a single ship in US Navy history. The cruiser had been on a secret mission to deliver components for the “Little Boy” atomic bomb to the US Army Air Force Base in Tinian. After completing its task, the ship was assigned to training duty but was quickly torpedoed by a Japanese submarine while en route to the Philippines. Of the 1,196 crew members, only 316 survived.
The story of the ship became a part of pop culture with the release of Jaws, in which Captain Quint, portrayed as a survivor of the Indianapolis, recounted how the men who ended up in the water were attacked by sharks for four days before being rescued. As for the ship, it sank in just 12 minutes after being struck, sending no distress signal, and now rests at the bottom of the ocean somewhere between Guam and the Philippines.
For two decades, two expeditions attempted and failed to locate the wreck using modern technology. In 2016, a breakthrough came when records revealed that the Indianapolis had passed another ship 11 hours before being attacked. Using this other vessel’s known route, a new expedition funded by Microsoft co-founder Paul Allen estimated the shipwreck's location. Over a year later, they finally located the USS Indianapolis in the North Pacific Ocean at a depth of 5,500 meters (18,000 ft).
7. Unveiling the Terra-Cotta Army’s Colors
Researchers in China believe they’ve solved the 2,200-year-old mystery behind the vibrant paint used on the famous Terra-Cotta Army.
Unearthed in 1974, the Terra-Cotta Army is an extensive collection of nearly 9,000 statues depicting soldiers, chariots, and horses, all buried with China’s first emperor, Qin Shi Huang, to protect him in the afterlife. Upon discovery, some of the figures still displayed patches of vibrant pigments and tiny remnants of bonding material—an extremely rare find for statues buried for over two millennia beneath waterlogged soil. The pigments used were identified as inorganic compounds like cinnabar, azurite, and malachite, but the bonding agent and the precise painting techniques remained a mystery until now.
To solve this puzzle, Chinese scientists employed a cutting-edge technique known as matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). This high-sensitivity method allowed them to detect even trace amounts of the bonding agent. The findings were then compared with “artificially aged” samples of adhesives from the same era through peptide mass fingerprinting, which revealed the proteins in each sample.
The study uncovered that Qin dynasty artists first coated the sculptures with one or two layers of lacquer sourced from the Toxicodendron tree, commonly known as the Chinese lacquer tree. Following this, they either applied polychrome layers directly or, more frequently, used animal glue as the binding medium.
6. The Enigma of Blood Falls
In 1911, geographer Thomas Griffith Taylor stumbled upon an unusual stream of water flowing from the edge of Taylor Glacier in East Antarctica. The striking red hue of the water earned it the name Blood Falls, a mystery that remained unsolved for over a century.
At first, scientists speculated that the red color was caused by red algae. However, this hypothesis was later debunked, and researchers determined that iron oxides were responsible for the red tint. The exact cause, however, remained unclear until 2017. A collaborative study between Colorado College and the University of Alaska Fairbanks used radio-echo sounding radar to uncover that the waterfall was linked to a large, briny water source, possibly trapped beneath Taylor Glacier for over a million years.
The brine’s high salt content made its 91-meter (300 ft) path stand out starkly against the surrounding ice. Yet, what astonished researchers even more was the discovery of liquid water—something they believed impossible in such extreme cold. Indeed, Taylor Glacier is now the coldest glacier known to have persistently flowing water.
This finding holds significant implications for astrobiologists, who see parallels between the extreme conditions at Blood Falls and those that might exist on other celestial bodies, such as Jupiter’s moon, Europa. The site provides researchers with an easier way to access extremophiles without the need to drill through ice, thus avoiding the risk of contaminating pristine environments.
5. The Extinction of the Largest Primate
While it is widely acknowledged that Gigantopithecus was the largest primate to ever walk the Earth, the limited fossil record leaves many details about its true size uncertain. Estimates place the giant ape's height between 1.8 and 3 meters (6–10 ft) and its weight between 200 and 500 kilograms (440–1100 lb). Additionally, experts cannot pinpoint exactly how long Gigantopithecus survived, though they believe it roamed the Earth anywhere from nine million to 100,000 years ago.
Despite the many unknowns, researchers at the Senckenberg Center for Human Evolution and Palaeoenvironment (HEP) in Germany have managed to shed light on one major question—why Gigantopithecus went extinct.
Their research suggests the ape’s extinction was caused by its inability to adapt. By analyzing the enamel of its teeth, they concluded that Gigantopithecus was strictly herbivorous, though it didn’t rely solely on bamboo as once believed. This limited diet meant it could only survive in forested areas. But during the Pleistocene, vast swaths of forest in China and Thailand—where the ape lived—transformed into savannas, dramatically reducing the availability of food. Unable to adjust to a new diet, the giant primate eventually became extinct.
4. The Flight of Barry Troy
On February 25, 1958, Lieutenant William Thomas Barry Troy of the Royal Canadian Navy was piloting a F2H-3 Banshee jet en route to the Mayport, Florida naval air station. However, the 29-year-old aviator veered off from his four-plane formation and was never heard from again. While he was presumed dead, the only items recovered were his helmet and a wheel from the aircraft.
In 2017, Hurricane Irma struck as one of the most devastating storms in history, claiming over 100 lives and causing billions of dollars in damage. However, it also played an unexpected role in solving the 59-year-old mystery surrounding Lt. Troy’s disappearance.
A park ranger at Florida’s Hanna Park discovered a pile of debris washed ashore. Upon further examination, he found parachute rigging labeled with the words “Lt. (P) Troy” on the harness. It seems likely that the parachute had been buried beneath sand dunes for many years before the hurricane unearthed it. Strangely, the parachute had not been deployed. No human remains or significant parts of the aircraft wreckage were found, leaving the fate of Lt. Troy’s plane uncertain.
3. Solving America’s Oldest Unsolved Murder
In 1607, Jamestown, Virginia, became the first enduring English settlement in the Americas. In the past twenty years, it has also become a central hub for Colonial American archaeology, with the Jamestown Rediscovery Project uncovering the remains of the original James Fort. What was initially expected to be a decade-long project has been extended indefinitely, as new discoveries and insights continue to emerge.
Among the discoveries in 1996 was the skeleton of a young man, later designated as JR102C. This individual had suffered a gunshot wound to the right leg, with a lead bullet found near the remains. His 400-year-old death was classified as an unsolved murder.
After more than 17 years, forensic archaeologists announced in 2013 that they had not only identified the victim but also the identity of his killer. They theorized that JR102C was shot during a duel, as the bullet wound was located on the side of his knee, indicating he was likely standing sideways. Records and other findings led researchers to identify the victim as George Harrison and the man who shot him as Richard Stephens, a merchant. Their duel in 1624 ended with Harrison being shot in the leg and dying from blood loss.
2. The Curious Extinction Of The Tasmanian Tiger
The last confirmed thylacine, also known as the Tasmanian tiger, passed away in captivity in 1936. Since then, countless individuals have reported unverified sightings of the animal, but without any concrete evidence, the thylacine was officially declared extinct 50 years later. While its continued existence remains uncertain, scientists believe they have unraveled another mystery related to this animal: why it managed to survive on Tasmania while it disappeared from mainland Australia thousands of years ago.
One theory suggested that a disease devastated the thylacine population on the mainland. Another posited that the thylacine was outcompeted by the dingo, an animal absent on Tasmania. However, researchers from the University of Adelaide contend that the primary cause of extinction on the mainland was climate change, specifically droughts linked to the El Niño weather phenomenon.
Scientists at the Australian Center for Ancient DNA recently sequenced 51 new genomes from thylacine fossils. Their research revealed that thylacine populations in Southern Australia split into western and eastern groups around 25,000 years ago. The study also found that although droughts negatively impacted thylacine numbers on Tasmania, the island's higher rainfall provided some protection from the extreme heat. This allowed the thylacine population to recover before European settlers arrived in the 18th century.
1. The Tibetan Millet Mystery
A recent agricultural study conducted by Washington State University aims to uncover the cause of a significant migration that took place on the edges of the Tibetan Plateau approximately 4,000 years ago.
According to the research team, led by archaeologist Jade D'Alpoim Guedes, climate change may have forced the ancient inhabitants of the Eastern Tibetan Highlands to leave due to the inability to cultivate millet, their staple food crop.
Archaeological findings reveal that millet was the primary crop grown in the region toward the end of the warm period known as the Holocene Climatic Optimum. However, as global temperatures dropped, this cooling had a detrimental effect on Tibetan agriculture. Millet, which thrives in hot conditions, became harder to grow. This shortage of food led many people to migrate in search of more favorable lands. It wasn't until 300 years later that the area started recovering, thanks to the introduction of wheat and barley, which thrived in the cooler temperatures and quickly became the dominant crops.
Interestingly, the ancient millet seeds may experience a revival in the near future, as the Tibetan Plateau is currently one of the fastest-warming regions on Earth.
