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.
Central America
Mexico and Guatemala launch joint security operation after Agua Zarca border attack
The Government of Mexico announced on Tuesday that it has strengthened coordination with Guatemala following an armed confrontation in the community of Agua Zarca, in Guatemala’s Huehuetenango department, where a soldier was wounded in an attack attributed to organized-crime groups operating on both sides of the border.
The Secretary of Security and Citizen Protection, Omar García Harfuch, confirmed that Mexico is exchanging information with Guatemalan authorities and that Mexican Army units have been deployed along the border to reinforce surveillance and assist in reconnaissance operations.
The attack, Guatemala’s Defense Ministry stated, reflects the “criminal dynamics” dominating that border region, where different groups compete for drug and arms trafficking routes.
According to Guatemala’s Defense Ministry, the clash left a soldier wounded in the leg after suspected criminals crossed from Mexico and opened fire. The wounded soldier is reportedly in stable condition. Authorities also seized high-caliber weapons, explosives, tactical gear and drones, which were handed over for forensic analysis.
Mexican Defense Secretary General Ricardo Trevilla Trejo announced that a coordinated plan of operations will be launched involving both Mexican and Guatemalan forces along the border to counter these criminal networks.
Harfuch emphasized that the violence is not isolated but symptomatic of the ongoing struggle between criminal organizations for territorial control, and reiterated Mexico’s commitment to bilateral security cooperation and its intention to strengthen institutional presence in vulnerable border zones.
International
Zelensky meets Pope Leo XIV as review of U.S. peace plan continues
Ukrainian President Volodymyr Zelensky met on Tuesday with Pope Leo XIV in Italy, after pledging to deliver a response to the United States regarding the proposed peace plan aimed at ending the war with Russia.
The meeting with the pontiff took place at the papal residence in Castel Gandolfo, near Rome, where Leo XIV “reiterated the need to continue dialogue and renewed his urgent hope that the ongoing diplomatic initiatives may lead to a just and lasting peace,” the Vatican said in a statement.
His visit to Italy follows Monday’s meetings with European leaders in London and Brussels, amid pressure from U.S. President Donald Trump to agree to a peace plan that Zelensky said he is still reviewing.
According to Zelensky, the plan presented by Washington—originally consisting of 28 points—was reduced to 20 after discussions between Ukrainian and U.S. representatives over the weekend. “We are going to work on those 20 points. We are not completely satisfied with the proposals from our partners,” Zelensky said during an online press conference on Monday.
International
Japan lifts tsunami alert after strong 7.6-magnitude earthquake hits northern coast
A powerful 7.6-magnitude earthquake struck Japan’s northern coast on Monday, triggering several tsunami waves of up to 70 centimeters, authorities said. The tsunami alert was lifted in the early hours of Tuesday.
According to the U.S. Geological Survey (USGS), the quake occurred at 11:15 p.m. local time (14:15 GMT) off the coast of Misawa, at a depth of 53 kilometers. Japan’s Meteorological Agency (JMA) immediately issued a tsunami warning. The first wave reached a port in Aomori Prefecture at 11:43 p.m. (14:43 GMT), followed by others measuring up to 70 centimeters.
Public broadcaster NHK reported that an employee at a hotel in the city of Hachinohe confirmed that several people were injured. Live footage showed shattered glass scattered across roads, while many residents evacuated to the city hall seeking shelter.
The strong tremor was also felt in Sapporo, where emergency alerts were sent to residents’ mobile phones. A reporter in Hokkaido described a horizontal shaking that lasted around 30 seconds, making it difficult to stay standing.
Before the alert was lifted, the JMA had warned of the possibility of tsunami waves up to three meters high along Japan’s Pacific coast. Government spokesperson Minoru Kihara urged residents to remain in safe areas until the warning was officially lifted.
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