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
Trump announces 17-nation alliance in the Americas to “destroy” drug cartels
U.S. President Donald Trump announced on Saturday the creation of a 17-nation alliance across the Americas aimed at dismantling drug cartels, during a regional summit held at his golf club in Doral.
Speaking to a group of allied leaders at the Shield of the Americas Summit, Trump said the initiative would rely on military force to eliminate powerful criminal networks operating throughout the hemisphere.
“The heart of our agreement is the commitment to use lethal military force to destroy these sinister cartels and terrorist networks. Once and for all, we will put an end to them,” Trump told the assembled heads of state.
The Republican leader argued that large portions of territory in the Western Hemisphere have fallen under the control of transnational gangs and pledged U.S. support to governments seeking to confront them. He even suggested the potential use of highly precise missiles against cartel leaders.
Before making the announcement, Trump greeted the roughly twelve leaders attending the summit, including close allies such as Javier Milei, Daniel Noboa and Nayib Bukele, whom he described as a “great president.”
The meeting forms part of Trump’s broader regional strategy inspired by his reinterpretation of the Monroe Doctrine, which seeks to reinforce Washington’s influence in the Americas, strengthen security cooperation and counter the growing presence of powers such as China.
Trump pointed to recent U.S. actions in the region as examples of his administration’s approach, including the operation that led to the capture of former Venezuelan president Nicolás Maduro earlier this year.
The summit also takes place amid escalating international tensions following the conflict launched last week by the United States and Israel against Iran.
International
Trump replaces Homeland Security Secretary Kristi Noem with Senator Markwayne Mullin
U.S. President Donald Trump announced Thursday the departure of Kristi Noem as Secretary of Homeland Security, one of the key architects of the administration’s policy of deporting undocumented immigrants.
Noem, who has been assigned a new role as a “special envoy” to Latin America, will be replaced starting March 31 by Republican Senator Markwayne Mullin, the president said in a message posted on his social media platform Truth Social.
According to media reports, Trump made the decision after Noem’s recent hearings in Congress, during which she faced tough questions regarding the awarding of a major public contract.
International
Young Woman Will Represent Mexico at 2026 World Cup Opener, Says President Sheinbaum
Mexico’s president, Claudia Sheinbaum, announced Thursday that the young Mexican woman who proves to have the best ball control skills will receive her personal ticket to the opening match of the 2026 FIFA World Cup in Mexico City.
The left-wing leader had previously said she would not attend the tournament’s opening game on June 11 in the Mexican capital and instead planned to give away the ticket number 00001, reserved for her by FIFA.
During her morning press conference, Sheinbaum explained that women between 16 and 25 years old can participate by submitting a video through an official platform.
“What do they have to do? Keep the ball in the air for one minute,” she said, referring to the soccer juggling challenge that will determine the winner.
Among the judges selecting the winner will be Mexican striker Charlyn Corral, the world’s top female scorer who set a ball-control record in 2005, and professional referee Katia Itzel García.
Sheinbaum also revealed that she plans to watch the opening match during a large public gathering with giant screens in the Zócalo, located in the historic center near the presidential palace.
“Very few people will be able to attend the opening. So I will watch it here with the people, and a young woman will represent me and the people of Mexico,” the president said.
Sheinbaum has previously commented on the high cost of World Cup tickets, as well as the difficulty of obtaining them in a metropolitan area with more than 20 million inhabitants.
In the 2026 tournament, jointly hosted by United States, Mexico, and Canada, Mexico will stage 13 matches in Mexico City, Guadalajara, and Monterrey.
The opening match will take place at the legendary Estadio Azteca, which previously hosted World Cup opening ceremonies in 1970 and 1986, occasions when the presidents in attendance were famously booed by the crowd.
Trump announces 17-nation alliance in the Americas to “destroy” drug cartels
Trump replaces Homeland Security Secretary Kristi Noem with Senator Markwayne Mullin
Young Woman Will Represent Mexico at 2026 World Cup Opener, Says President Sheinbaum
Tec de Monterrey honors one of its students for his contribution to nanotechnology in medicine
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