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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.

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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.

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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.

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International

Climate-driven rains trigger one of Indonesia’s deadliest flood emergencies in years

A torrential monsoon season, compounded by two unusual tropical cyclones, has triggered intense rainfall in several regions since last week, including southern Thailand, northern Malaysia, and large parts of Indonesia.

Climate change has recently intensified rainfall patterns, as a warmer atmosphere is able to hold more moisture. In Indonesia, desperation is growing among those affected by the disaster due to the slow pace of rescue operations and the distribution of humanitarian aid.

Relief agencies warned that the scale of the emergency is nearly unprecedented, even for a country accustomed to frequent natural disasters.

Across the island of Sumatra, the death toll was revised downward to 770 fatalities and at least 463 people still missing as of Wednesday night. Earlier, the national disaster management agency had reported 804 deaths.

Gathering accurate information on the ground remains difficult, as many regions are still cut off due to flood damage, widespread power outages, communication failures, or a combination of all three.

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International

Russian authorities ban Roblox citing child safety and moral concerns

Russia has blocked access to the U.S.-owned game creation platform Roblox, accusing it of distributing extremist materials and what authorities described as “LGBT propaganda,” state media reported on Wednesday.

The country has repeatedly threatened to ban certain foreign digital platforms, a move that human rights organizations view as part of broader efforts by authorities to tighten control over internet use.

In a statement released through Russian news agencies, the federal communications watchdog Roskomnadzor accused Roblox of hosting “inappropriate content that can negatively affect the spiritual and moral development of children.”

“The game exposes minors to sexual harassment, tricks them into sharing intimate photos, and encourages them to commit acts of depravity and violence,” the regulator claimed.

Last week, the same agency also threatened to ban WhatsApp, the country’s second most widely used messaging app, accusing it of failing to prevent criminal activity.

Roblox, which is owned by the U.S.-based Roblox Corporation, did not immediately respond to a request for comment.

According to company data for 2024, the platform has around 100 million daily users worldwide, nearly 40% of whom are under the age of 13.

Other countries, including Qatar, Iraq and Turkey, have also restricted or banned Roblox, mainly over concerns about the safety of underage users. In the United States, the states of Texas and Louisiana have filed lawsuits against the platform on similar grounds.

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International

El Chapo’s son Joaquín Guzmán López pleads guilty to U.S. drug trafficking charges

Joaquín Guzmán López, one of the sons of notorious Mexican drug lord Joaquín “El Chapo” Guzmán, pleaded guilty on Monday to drug trafficking charges in a U.S. court, months after his brother Ovidio reached a similar plea agreement, according to local media reports.

The defendant appeared before a federal court in Chicago early Monday afternoon and changed his previous plea in the case, the Chicago Tribune reported. U.S. authorities accuse him of forming, together with his three brothers, the cartel faction known as “Los Chapitos.”

The group is believed to have continued the operations of El Chapo, who has been serving a life sentence in the United States since 2019.

Guzmán López, 39, was arrested after landing in Texas in a small aircraft alongside cartel co-founder Ismael “El Mayo” Zambada.

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