Bizarre Puzzle Behind The Sunken Ship

After the British warship HMS Tyger ran aground on a coral reef near Garden Key, Florida, on 13 January 1742, even dumping its cannons overboard couldn’t set it free. Decades later, those same cannons helped archaeologists definitively identify the wreck.

The ship, which was on patrol as part of the War of Jenkins’ Ear between Britain and Spain, is 130 feet in length and represented 704 tons of patrol power, with 50 cannons scattered across three decks.

The 300-plus men on board sailed near Cuba and Jamaica as a show of force to the Spanish. That force lost its momentum when it hit the coral reefs of the Florida Keys, leading the crew to toss anchors and cannons overboard to no avail and forcing them to abandon the ship toward Garden Key, where they built shelter as the island’s first fortifications.

In 2024, the history of the HMS Tyger and Garden Key came back to life thanks to a positive identification of the ship. "Archaeological finds are exciting, but connecting those finds to the historical record helps us tell the stories of the people that came before us and the events they experienced," James Crutchfield, Dry Tortugas National Park manager, said in a statement. "This particular story is one of perseverance and survival."

The ship was initially discovered in 1993, but archaeologists from the park, the Submerged Resources Center, and the Southeast Archaeological Center used newly uncovered evidence — found when the site was surveyed in 2021 — to gain more details and make a positive identification of the ship.

The team found five cannons roughly 500 yards from the main wreck, and buried in the margins of old logbooks was a reference that described how the crew "lightened her forward" after initially running aground, briefly refloating the vessel before finding further trouble.

Archaeologists determined the cannons to be British six- and nine-pound cannons linked to the HMS Tyger. The findings were published in the International Journal of Nautical Archaeology.

As governed by international treaty, the HMS Tyger and related artifacts are sovereign property of the British government, and the site is protected under cultural resource laws.

"This discovery highlights the importance of preservation in place as future generations of archaeologists, armed with more advanced technologies and research tools, are able to reexamine sites and make new discoveries," Josh Marano, the maritime archaeologist who led the team making the discovery, said in a statement.

Believed to have first been built in 1647, the HMS Tyger was reconfigured multiple times before the 1741 iteration carried six 6-pounder guns on the quarter deck, 22 9-pounders on the upper deck, and 22 18-pounders on the gun deck, according to the National Park Service.

Those heavy guns were unloaded when the ship ran aground in 1742 in an effort to dislodge the ship. The crew moved everything else to the back of the ship. Historical records say poor weather helped worsen the situation, and the crew was ordered to abandon ship.

Archaeologists believe the HMS Tyger was the first of three British warships to sink off the Florida Keys. The HMS Fowey and HMS Looe wreck sites were previously located, but the HMS Tyger location had remained a mystery.

The 300 members of the crew were able to navigate the shallow waters to the nearby Garden Key, spending 66 days marooned there. The National Park Service stated the men crafted the first fortifications on the island, more than 100 years before Fort Jefferson took shape.

The crew was eager to leave the heat, mosquitoes, and lack of water, attempting to escape the deserted island by trying to salvage pieces of the wrecked ship and build new vessels. The crew even attempted an attack on a Spanish vessel, according to historical records. That attempt failed, and the crew decided to burn the HMS Tyger remains so the Spanish didn’t capture the guns.

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What Happened To The Two Groups Of Humans That Vanished 3,000 Years Ago?

There is a strange gap in the contents of a 5,000-year-old megalithic tomb outside Paris may explain not only a widespread neolithic population drop, but also who stepped in to repopulate the Paris Basin.

The Bury tomb, roughly 30 miles north of Paris, is a stone burial monument containing the remains of 300 people. Using a combination of DNA and demographics, researchers investigating the tomb believe they’ve found out why the Paris Basin suffered a dramatic population shift around 3100 B.C.E., and just who entered the region to take their place.

In a new study published in the journal Nature Ecology & Evolution, an international team of researchers link the Paris-region stone-age site to a massive continent-wide demographic crisis.

Prior to the mysterious population decline, megalithic tomb construction defined the wide-reaching area for over 1,000 years. While each region put its own cultural touches on funerary construction, the tombs at Bury were consistent, communal, and housed tens of thousands of burials over centuries. The Paris Basin featured an especially high concentration of such tombs, as did central Germany and southern Scandinavia.

According to the new research, construction of these tombs abruptly "ceased across continental northwestern Europe" at the end of the fourth millennium B.C.E. The break in the millennial burial tradition happened everywhere — and until now, the reason remained unknown.

The investigation of the Bury megalith revealed that it represented two distinct phases of burials — the first was from roughly 3200 to 3100 B.C.E., and the second began around 2900 B.C.E. The 200-year gap in which there were no burials coincided with a wave of population losses across northern Europe, a neolithic decline that researchers haven’t fully understood, but which contributed to a complete remaking of populations in the area.

By examining DNA evidence from 132 individuals found in Bury, the team discovered that the two distinct historical phases were unrelated. Phase one individuals had a genetic diversity extending well beyond the Paris Basin, tied to farming populations across the continent. Phase two burials, on the other hand, were substantially more homogeneous, with over 80 percent of the group’s ancestry traced to neolithic Iberia (what is now Spain and southern France).

The burial styles were even different, with phase one burials featuring multi-generational families and evidence that women married into the community from the outside, while phase two burials included smaller families and unrelated individuals buried next to each other. With distinctly different Y chromosome lineages in the second phase, this wasn’t a gradual cultural shift, but a dramatic population turnover.

Paired with pollen data (which shows forests were regrowing during the gap) and a shift in farming practices after the gap, the turnover signals the abandonment of grazing lands and fields, implying that settlements were vacant. The pattern that matches the aftermath of the Justinian Plague and the Black Death.

The authors argue that the 3100 B.C.E. decline was geographically widespread, creating a demographic vacuum across northwestern Europe that opened the door for neighboring populations to fill in the void. In Scandinavia, steppe pastoralists replaced local farmers entirely. In the Paris Basin, Iberian farmers moved into the then-empty spaces.

"We may thus consider the possibility that both the Iberian northward migration and the expansion from the steppe were related responses to the Neolithic decline," the authors wrote, "as widespread demographic contraction would have created a vacuum that neighboring groups could expand into."

The first community that defined the Paris Basin was essentially erased, but clues to what caused the erasure were found in the Bury tomb. Researchers discovered ancient pathogens — including the plague and louse-borne relapsing fever — in the remains.

Experts believe that infectious disease, environmental stress, and demographic contraction all led to the widespread demographic collapse. "These findings detail a population turnover at the end of the fourth millennium B.C.E.," they wrote, "offering a possible explanation for the cessation of megalith building."

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Archaelogist found a goblet-shaped sea jelly relatives with miniature "arms." A plump, legless creature resembling a sausage. Long, wormlike animals tipped with flat "holdfast" discs for anchoring to the seafloor.

Newfound fossils from a site in southwestern China, preserved in exquisite detail, offer a peek at a time in Earth’s distant past called the Ediacaran (635 million to 542 million years ago). The discovery suggests that complex animals — perhaps even ancestors of all vertebrates — were around millions of years earlier than once thought.

A few types of creatures were previously known from the Ediacaran, but the evolution of complex animal life has long been associated with the Cambrian, a later period from 542 million to 488 million years ago when fauna diversity and complexity were booming.

During the Cambrian explosion, animals with a wide range of bizarre structures and adaptations emerged. Some groups died out, but others eventually gave rise to modern animal groups such as chordates, crustaceans and mollusks. Because the Cambrian fossil record preserves so much animal diversity, scientists have long hypothesized that complex animal life didn’t yet exist during the Ediacaran.

However, the fossils from China tell a different story. These boneless organisms fossilized as biofilm — they were rapidly buried and compressed between layers of rock, leaving behind two-dimensional impressions of their organic tissues. Animals’ entire bodies were preserved. Feeding structures, delicate limbs and even traces of internal organs, which are typically lost during fossilization, are still visible.

For the first time, scientists have highly detailed examples of animals from the latter part of the Ediacaran. What an international team of researchers saw suggests that complex animal life arose around between 554 million and 539 million years ago — at least 4 million years before the Cambrian, they reported recently in the journal Science.

"We found what’s been long hoped for, which is a Cambrian-like preservation in the Ediacaran," said study coauthor Ross Anderson, an associate professor of natural history at the University of Oxford in the United Kingdom. "We actually start to see some of the Cambrian-like organisms appearing in the Ediacaran when you have the right kind of preservation."

Researchers found the fossils at the Jiangchuan Biota fossil site in what’s now China’s Yunnan province. The site measures just 518 square feet (50 square meters), covering roughly the same area as a dozen king-size mattresses. Scientists from China and then the UK excavated approximately 700 fossils during multiple visits between 2022 and 2025. About 200 of these specimens represented animals, many measuring less than an inch (2.5 centimeters) long.

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Remains Of One Of The Largest Christian Monasteries Was Discovered

Egypt often brings to mind visions such as the Sphinx, Tutankhamun’s iconic gold death mask, or pyramids casting long shadows over the Giza Plateau, but life went on after the last of the pharaonic dynasties vanished. It was the dawn of a new era.

After the advent of Christianity, religious beliefs in Egypt shifted, and with it, the megalithic statues of gods from the old pantheon gave way to new churches and monasteries rising up from the sands. More of them are now being unburied.

After the rule of the Ptolemies ended, Egypt found itself in a tumultuous transitional period. Christianity was brought to the former land of the pharaohs by Saint Mark the Evangelist around 49 C.E. Christianity became more widespread under the leadership of Bishop Demetrius of Alexandria almost 200 years later, though its followers faced persecution under Roman rule until Emperor Constantine declared it the state religion in 312 C.E.

Theological scholars flocked to Alexandria for centuries, though competition with the newer Christian capital of Constantinople (now Istanbul), along with controversies over religious doctrine, led to Egyptian Coptic Christians breaking from the Roman Catholic Church and the Greek Orthodox Church during the 5th century C.E. Coptic art and culture continued to flourish despite the rift.

While excavating at the Al-Ruba’iyat area of the Al-Qalaye site in Hosh Issa, archaeologists discovered what is now thought to be one of Egypt’s oldest monasteries, dating back to the 5th century.

Monasteries were beginning to turn into epicenters of Christian learning, opening their doors to visitors, and moving away from the sometimes-brutal asceticism followed by early monks, which demanded isolation and extreme discipline. As archaeologists dug through the dust and sand, the remains of the monastery at Al-Qalaye revealed thirteen rooms divided by architectural arches, including individual and communal spaces for monks, kitchen and storage areas, and larger halls used for teaching and hospitality. The archaeological team also noticed that there had been several additions to the structure as its evolution continued over time.

Earlier archaeological missions at the site had also found clusters of monastic cells or "manshubiyat" along with service buildings and pottery. The monastery bustled with activity in its prime.

Led by archaeologist Samir Rizq Abdel-Hafez, the excavation project found a spacious hall on the north end, with stone benches decorated in plant motifs, which were probably used for receiving guests. At the heart of the complex was a sacred prayer room marked by a limestone cross.

Bones of birds and other animals, seashells, and pottery vessels meant for food storage showed what the monks ate on a daily basis. The monks spent their entire lives practicing devotion. They were also likely buried on site, as evidenced by a headstone carved from limestone with a Coptic inscription reading "Apa Kyr, son of Shenouda."

The mission has also yielded many preserved remnants of Coptic art, including walls covered in murals of monks framed by intricate braided patterns that had been painted in red, black, and white shades that faded over the centuries. There was more inspiration from the natural world on display in images of gazelles surrounded by foliage and distinctive flowers with eight petals. Fragments of ceramics are painted with similar motifs, and deeper digging exposed a marble column along with capitals and bases of other columns.

Hisham El-Leithy, Secretary General of the Supreme Council of Antiquities, sees the monastery as giving further insights into Coptic art and architecture. Another mission from the Council previously came upon an older architectural complex from the period when Egypt segued from paganism to Christianity.

Located at the Ain al-Kharab site, it held ruins from the city of Kharga Oasis, including churches, cemeteries, and residential buildings, as well as a mural of Christ healing a sick person. Both the city and the monastery will continue to tell us more about early Coptic culture and art as more structures and artifacts are discovered.

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Japanese Biologist Cloned A Mouse And Cloned The Clone

Creating exact copies or doppelgängers of creatures in a lab was largely the stuff of science fiction until 1996, when Dolly the Sheep became the first mammal ever to be cloned. But while speculations arose about the potential pitfalls of generating hordes of clones, as a team of Japanese researchers found out, those issues sometimes take on a different form than expected.

Two decades ago, Teruhiko Wakayama (a biologist from the University of Yamanashi) and his team of researchers cloned a single female mouse. Then, they cloned the clone, and the clone’s clone.

With initially promising results, they continued to clone from each successive generation of clones for a total of 58 generations (not including the original mouse). But problems began to rear their heads after generation 25—when re-clones from one of the later generations mated with male mice, egg fertilization succeeded, but embryos degenerated. It turned out that, despite having no abnormalities in appearance or lifespan, more and more mutations had begun to accumulate in the DNA of each successive generation. Eventually, the combined effects of the mutations became lethal.

Creatures that clone themselves repeatedly do exist in nature, so it’s not impossible to do. Hydra and coral polyps are just two examples of animals that can self-replicate, but as it turns out, mammals (which rely on sexual reproduction) are a different story. For many years, it was thought that cloning could potentially be used to produce superior domesticated animals en masse, or bring endangered species back from the brink. But after seeing what happened with the 1,200 mice they cloned, the researchers behind the 20-year experiment aren’t so sure.

"[Mammal cloning] issues are believed to stem from failures in "reprogramming" the donor nucleus to reset the epigenetic state of differentiated somatic cells to that of a fertilized embryo; this occurs not directly due to DNA abnormalities, but the detailed mechanisms responsible remain unclear," they said in a study recently published in the journal Nature Communications.

Given that genetic abnormalities don’t appear in successive generations of cloned plants, non-mammalian vertebrates cloned through parthenogenesis, or less complex cloning animals (such as hydras), researchers wanted to see if mammals could also be cloned indefinitely.

The first rounds of results looked hopeful — after serial cloning trails began in 2005, DNA sequencing and analysis of duplicated mice revealed no differences between early and later generations of clones. But that began to change after generation 27, when genetic abnormalities began to negatively affect fertility. By the 58th generation, the cloned mice died the day after birth.

There may have been several causes behind the abnormalities that arose in later generations. One suspect was Trichostatin A (TSA), which enhances nuclear reprogramming—a process that resets cells to have the differentiation abilities of pluripotent stem cells without changing any of their nuclear DNA. While the researchers suspected that TSA lost its effectiveness as generations progressed, analysis showed otherwise.

Epigenetic abnormalities—changes to gene expression that switch genes on and off without affecting the structure of the DNA sequence — were another possibility, but no such abnormalities were found. Embryos of mice that were cloned in vitro also showed nothing abnormal in their development.

It was only when the researchers sequenced the genomes of re-cloned mice from different generations that they found mutations. Disastrously, by the final generation, so many background mutations had accumulated that the clones were no longer viable. While many re-cloned mice with multiple mutations were able to live out healthy lives (and some even bred with mice that were not clones), successive cloning ultimately backfired. These results raise serious doubts about whether cloning can provide a way to save endangered mammal species.

"Since the birth of Dolly the sheep, cloning technology has been envisioned for diverse applications," the researchers said. "Yet, these findings demonstrate that practical application of cloning of mammals requires a deeper appreciation of these biological constraints, warranting further research, and reaffirm the evolutionary inevitability that sexual reproduction is indispensable for the long-term survival of mammalian species."

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