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
India Approves New Dengue Vaccine as Global Cases Continue to Rise
India has approved a new dengue vaccine as health authorities seek to strengthen prevention efforts against a mosquito-borne viral disease that affects millions of people worldwide every year.
According to the World Health Organization (WHO), half of the global population is currently at risk of contracting dengue, which causes between 100 million and 400 million infections annually.
Since 2021, India has recorded more than one million dengue cases, including at least 1,500 deaths.
The virus can cause high fever, severe headaches, muscle pain, nausea, skin rashes and, in rare cases, internal bleeding and death.
The vaccine, authorized by India’s Central Drugs Standard Control Organization (CDSCO), was developed by Japanese pharmaceutical company Takeda. The Indian Health Ministry said the vaccine is recommended in two doses for people between 4 and 60 years old.
The treatment has already been approved by health authorities in around 40 countries worldwide.
Meanwhile, Indian pharmaceutical company Panacea Biotec has begun the final phase of clinical trials for a single-dose dengue vaccine, aiming to provide another prevention option against the disease.
Brazil recently announced the suspension of the use of another single-dose dengue vaccine developed in the country after two suspected deaths were reported.
International
U.S. Sends First Humanitarian Aid Flight to Cuba Amid Ongoing Tensions Between Both Governments
The United States announced Tuesday the dispatch of a humanitarian aid flight to Cuba as part of a $100 million assistance package proposed by Secretary of State Marco Rubio in May.
The flight departed from Miami with the support of Catholic Relief Services, according to a statement from the U.S. State Department.
The administration of President Donald Trump, which has maintained restrictions on oil supplies to the island and tightened sanctions against the Cuban government, had initially announced humanitarian assistance in November following the devastating impact of Hurricane Melissa.
In February, amid rising tensions between Washington and Havana, Rubio announced an increase in aid while continuing to criticize the Cuban government.
The U.S. secretary of state accused Cuba’s communist authorities of obstructing the distribution of assistance. Washington has insisted that the aid be delivered through the Catholic Church to ensure it reaches Cuban citizens directly.
The Cuban government, meanwhile, has blamed the U.S. oil blockade for making the distribution of humanitarian assistance significantly more difficult.
The aid shipment comes as relations between the two countries remain strained, with disagreements continuing over sanctions, energy supplies and the management of humanitarian support.
International
Controversial Pesticide Law Passes in France, Sparking Ecological Concerns and Ministerial Fallout
The French Parliament on Tuesday approved a highly controversial agricultural law that allows certain farmers to use two pesticides considered harmful to bees, substances that had been banned in France but remain authorized in the European Union.
After the National Assembly, the lower house of Parliament, approved the agricultural bill in the early hours of Tuesday, the Senate gave its final approval with a vote of 214 in favor and 111 against, officially adopting the measure.
Following the decision to reintroduce the use of acetamiprid and flupyradifurone, the office of Environment Minister Monique Barbut announced that she would soon submit her resignation.
Supporters of the measure argue that French producers of sugar beets, apples and hazelnuts need access to these insecticides — banned in France since 2018 and 2019, respectively — to remain competitive with European farmers in other countries where the products are still allowed.
Opponents, including environmental groups, argue that the substances pose serious risks to bees and could also threaten human health.
“Let us be proud of the work that has been done,” said Senator Laurent Duplomb of the conservative Republicans party, one of the main supporters of the measure.
The vote came after France’s Constitutional Council, the country’s highest court, struck down a previous attempt last year to bring back acetamiprid, ruling that the measure could pose risks to human health. That decision followed a petition signed by more than two million people opposing the pesticide’s reintroduction.
The previous bill had also been promoted by Duplomb, who argued that French agriculture needed additional tools to compete in international markets.
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