International
Dinosaur tail found in Chile stuns scientists
AFP
Chilean paleontologists on Wednesday presented their findings on a dinosaur discovered three years ago in Patagonia which they said had a highly unusual tail that has stumped researchers
The remains of the Stegouros elengassen were discovered during excavations in 2018 at Cerro Guido, a site known to harbor numerous fossils, by a team who believed they were dealing with an already known species of dinosaur until they examined its tail.
“That was the main surprise,” said Alexander Vargas, one of the paleontologists. “This structure is absolutely amazing.”
“The tail was covered with seven pairs of osteoderms … producing a weapon absolutely different from anything we know in any dinosaur,” added the researcher during a presentation of the discovery at the University of Chile.
The osteoderms — structures of bony plaques located in the dermal layers of the skin – were aligned on either side of the tail, making it resemble a large fern.
Paleontologists have discovered 80 percent of the dinosaur’s skeleton and estimate that the animal lived in the area 71 to 74.9 million years ago. It was about two meters (almost seven feet) long, weighed 150 kilograms (330 pounds) and was a herbivore.
According to the scientists, who published their research in the journal Nature, the animal could represent a hitherto unknown lineage of armored dinosaur never seen in the southern hemisphere but already identified in the northern part of the continent.
“We don’t know why (the tail) evolved. We do know that within armored dinosaur groups there seems to be a tendency to independently develop different osteoderm-based defense mechanisms,” said Sergio Soto, another member of the team.
The Cerro Guido area, in the Las Chinas valley 3,000 km (1,800 miles) south of Santiago, stretches for 15 kilometers. Various rock outcrops contain numerous fossils.
The finds there allowed the scientists to surmise that present-day America and Antarctica were close to each other millions of years ago.
“There is strong evidence that there is a biogeographic link with other parts of the planet, in this case Antarctica and Australia, because we have two armored dinosaurs there closely related” to the Stegouros, said Soto.
International
President Sheinbaum Hails Fátima Bosch’s Miss Universe Win as a Victory for Women’s Voices
Mexican President Claudia Sheinbaum praised Fátima Bosch on Friday for winning the Miss Universe 2025 title, recognizing her as a symbol of courage for Mexican women and highlighting her stance against an act of injustice during the international pageant.
Bosch, a native of Tabasco, claimed the crown at the competition held in Thailand. Her participation drew significant attention following an incident involving the director of Miss Universe Thailand, Nawat Itsaragrisil, who told her to remain silent for not sharing event-related content on her social media platforms. The remark prompted Bosch to walk out of the room in protest, an action supported by several other contestants.
President Sheinbaum denounced expressions like “you look prettier when you’re quiet,” asserting: “Women look more beautiful when we speak up and participate. And she raised her voice, saying, ‘This is unjust, I don’t agree.’”
Fátima Bosch, 25, became the fourth Mexican woman to win the Miss Universe crown, joining Lupita Jones (1991), Ximena Navarrete (2010), and Andrea Meza (2020).
Bosch triumphed over Thailand’s Veena Praveenar, who placed as first runner-up, and Venezuela’s Stephany Abasaly, who took third place. This year’s pageant featured contestants from 120 countries and territories, including nine mothers, one transgender woman, a genocide survivor, and the first-ever Palestinian contestant in the competition’s history.
International
Peru Orders Arrest of Betssy Chávez Amid Diplomatic Rift With Mexico
Peru’s Judiciary issued an international arrest warrant and ordered five months of pretrial detention on Friday for former Prime Minister Betssy Chávez, who is facing charges of attempting a coup d’état and is currently taking refuge in the Mexican Embassy in Lima.
Peru severed diplomatic relations with Mexico, arguing that the asylum granted to Chávez constitutes interference in its internal affairs. The former prime minister is accused of participating in former President Pedro Castillo’s attempted coup in December 2022.
“The court orders five months of pretrial detention for the defendant Betssy Chávez Chino, as well as national and international search and arrest notices,” the Judiciary stated.
Judge Juan Carlos Checkley argued that there is a “clear” flight risk and a significant chance of jeopardizing the upcoming oral trial.
The Supreme Anti-Corruption Prosecutor’s Office said it secured pretrial detention for Chávez “on charges of rebellion and, alternatively, conspiracy, to the detriment of the State.”
Chávez, who has been on trial since March 2025, faces a potential 25-year prison sentence. She has been staying for 18 days at the Mexican Embassy residence in Lima, awaiting a safe-conduct pass to leave the country.
The Peruvian government announced on November 7 that it intends to seek a review of regional diplomatic asylum regulations, following Mexico’s decision to grant protection to Chávez.
Relations between the two countries deteriorated after Castillo’s ousting, when Mexico granted asylum to the former president’s wife and two children. Since then, both governments have withdrawn their ambassadors.
International
Paraguay launches dengue vaccination for children in high-risk areas
Dengue fever, transmitted by the Aedes aegypti mosquito, remains a persistent threat in tropical and subtropical countries such as Paraguay, where it claimed the lives of 132 people among nearly 100,000 infections during the 2023–2024 Southern Hemisphere summer, according to official data. However, that figure was lower than the record set in the 2012–2013 season, when 252 deaths were reported among roughly 130,000 infections.
“Today marks a very important step toward protecting our children and bringing peace of mind to families,” Paraguay’s Minister of Health, María Teresa Barán Wasilchuk, said in a speech on Wednesday.
The vaccine will be administered to children between 6 and 8 years old in municipalities with the highest incidence of dengue cases in the past five years. Authorities will use TAK-003 (Qdenga), developed by Takeda—one of Japan’s largest pharmaceutical companies—which was approved by the World Health Organization (WHO) in 2024.
“We celebrate this step, which positions Paraguay as a country with one of the most robust immunization programs,” said Héctor Castro, director of the Acosta Ñu Pediatric Hospital. “We will work tirelessly to ensure this government decision becomes a success in the fight against this scourge.”
Vaccinating children against dengue “is not only a historic and public health milestone, but also a humanitarian one,” Castro added during remarks delivered at the hospital in San Lorenzo, near the capital, Asunción.
President Sheinbaum Hails Fátima Bosch’s Miss Universe Win as a Victory for Women’s Voices
Peru Orders Arrest of Betssy Chávez Amid Diplomatic Rift With Mexico
Paraguay launches dengue vaccination for children in high-risk areas
Tec de Monterrey honors one of its students for his contribution to nanotechnology in medicine
Defense Minister commends salvadoran soldier for Central American Cross Country victory
Extension of the state of emergency approved in southern Chile
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