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.

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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.

International

Mexico and Guatemala Agree on Five-Point Binational Plan for 2027

Mexico and Guatemala agreed Tuesday on a 2027 Binational Plan built around five areas of cooperation, along with a schedule of meetings and initiatives aimed at making progress by the end of 2026 on security, border infrastructure, human mobility, development and technical and social cooperation.

The agreement was announced by the foreign ministers of both countries following a meeting in Mexico City.

Mexican Foreign Minister Roberto Velasco said the plan will establish the “direction and priorities” of bilateral relations for next year. His Guatemalan counterpart, Carlos Ramiro Martínez, said the meeting allowed both governments to make decisions, schedule activities and revitalize bilateral cooperation mechanisms.

Security and border infrastructure

In the area of security, the two governments have nearly completed negotiations on a new memorandum of understanding for the Mexico-Guatemala High-Level Security Group (Ganseg), which was reactivated in 2025.

The countries expect to sign the agreement in the coming months to strengthen coordination and their ability to respond to shared security threats.

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Regarding their nearly 1,000-kilometer shared border, Mexico and Guatemala agreed to advance infrastructure improvements at border crossings and continue work on a joint cargo clearance program between Ciudad Hidalgo and Tecún Umán, two border areas separated by the Suchiate River.

The measures are intended to facilitate bilateral trade while making cross-border exchanges safer and more efficient.

The two governments will also continue defining a route toward a railway connection between their countries through Line K of Mexico’s Interoceanic Corridor of the Isthmus of Tehuantepec (CIIT), with the aim of strengthening economic and community ties.

Migration and development

On human mobility, Mexico and Guatemala will maintain coordination to ensure safe, orderly and dignified returns, while strengthening protection for people in transit.

The bilateral agenda also includes a second phase of the Sembrando Vida program in Guatemala, which is expected to benefit 10,000 people across 15 departments.

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Both countries will also advance initiatives under Juntos para el Bienestar, as well as six technical, scientific and energy cooperation projects approved by the Joint Commission.

The agreements seek to strengthen bilateral ties and establish concrete priorities for cooperation between Mexico and Guatemala during 2027.

International

France to Expel Two Iranian Diplomats Over Alleged Attack on French Officials

French Foreign Minister Jean-Noël Barrot announced Tuesday, August 18, 2026, that France will expel two Iranian diplomats in response to what Paris described as an attack on two French representatives in Iran last month.

“Two French diplomats were scandalously and deliberately assaulted on July 19. I had announced that this intolerable act would have consequences. It has now happened. Two Iranian diplomats in France will be expelled in the coming days,” Barrot said in a message posted on X.

The two Iranian diplomats have been declared persona non grata and will be required to leave France within the coming days, according to the French foreign minister.

About a month ago, Barrot said that two members of the French diplomatic staff had been detained by Iranian security forces for several hours. One of them was also subjected to harassment, he said.

The French government described the incident as an “extremely serious act of intimidation” that violated diplomatic immunity.

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The two French embassy staff members were working on programs supporting Iranian civil society, particularly initiatives involving artists and researchers.

Iran has denied France’s allegations regarding the incident. The diplomatic dispute comes amid already strained relations between Paris and Tehran.

International

Heat wave puts more than 70 million Americans under alerts as temperatures near 46°C

36 deaths reported due to heat wave in Nuevo Leon, Mexico

More than 70 million people remained under heat alerts Monday as an intense heat wave continued across the southern United States, particularly Florida and states along the Mexican border, where temperatures and heat indexes could reach as high as 46 degrees Celsius, according to the National Weather Service (NWS).

Several cities recorded or tied temperature records over the weekend and into Monday, including Miami and Fort Lauderdale in Florida; Laredo, Borger and Austin’s airport in Texas; Atlanta, Georgia; Raleigh and Charlotte, North Carolina; and Memphis, Tennessee.

The NWS warned that the heat wave will continue affecting the southern and southeastern United States, with maximum temperatures expected to remain near 38°C to 40°C for several days. The heat index, which combines temperature and humidity to estimate how hot conditions feel, could reach 46°C.

The extreme heat is also spreading into the Southwest, where temperatures began rising again between Monday and Tuesday. Forecast highs in the region range from about 38°C to 43°C.

Heat alerts remain in effect across Nevada, Arizona and California, including areas in southern Arizona and California near the Mexican border, as authorities warn of the risks posed by prolonged extreme temperatures.

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The NWS urged residents to limit outdoor activity, stay hydrated, ensure access to air conditioning or cooling centers, and check on vulnerable friends, neighbors and family members.

The United States is experiencing a summer marked by above-average temperatures and repeated heat waves. One of the most intense episodes occurred during the July 4 weekend, when extreme heat was blamed for roughly 30 deaths.

July was the hottest month ever recorded in the United States since measurements began, with the average temperature across the contiguous country approaching 25°C, according to the National Oceanic and Atmospheric Administration (NOAA).

The combination of extreme heat and drought conditions has also fueled wildfires. Nearly 3 million hectares have burned across the country so far in 2026, making it the largest area affected by wildfires in a decade.