International

Researchers say fossil shows humans, dogs lived in C. America in 10,000 BC

AFP

The fossil of a jaw bone could prove that domesticated dogs lived in Central America as far back as 12,000 years ago, according to a study by Latin American scientists.

The dogs, and their masters, potentially lived alongside giant animals, researchers say.

A 1978 dig in Nacaome, northeast Costa Rica, found bone remains from the Late Pleistocene.

Excavations began in the 1990s and produced the remains of a giant horse, Equus sp, a glyptodon (a large armadillo), a mastodon (an ancestor of the modern elephant) and a piece of jaw from what was originally thought to be a coyote skull.

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“We thought it was very strange to have a coyote in the Pleistocene, that is to say 12,000 years ago,” Costa Rican researcher Guillermo Vargas told AFP.

“When we started looking at the bone fragments, we started to see characteristics that could have been from a dog.

“So we kept looking, we scanned it… and it showed that it was a dog living with humans 12,000 years ago in Costa Rica.”

The presence of dogs is a sign that humans were also living in a place.

“We thought it was strange that a sample was classified as a coyote because they only arrived in Costa Rica in the 20th century.”

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– First of its kind –

The coyote is a relative of the domestic dog, although with a different jaw and more pointed teeth.

“The dog eats the leftovers from human food. Its teeth are not so determinant in its survival,” said Vargas.

“It hunts large prey with its human companions. This sample reflects that difference.”

Humans are believed to have emigrated to the Americas across the Bering Strait from Siberia to Alaska during the last great ice age.

“The first domesticated dogs entered the continent about 15,000 years ago, a product of Asians migrating across the Bering Strait,” said Raul Valadez, a biologist and zooarcheologist from the National Autonomous University of Mexico.

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“There have never been dogs without people,” Valadez told AFP by telephone.

The presence of humans during the Pleistocene has been attested in Mexico, Chile and Patagonia, but never in Central America, until now.

“This could be the oldest dog in the Americas,” said Vargas.

So far, the oldest attested dog remains were found in Alaska and are 10,150 years old.

Oxford University has offered to perform DNA and carbon dating tests on the sample to discover more genetic information about the animal and its age.

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The fossil is currently held at Costa Rica’s national museum but the sample cannot be re-identified as a dog without validation by a specialist magazine.

“This dog discovery would be the first evidence of humans in Costa Rica during a period much earlier” than currently thought, said Vargas.

“It would show us that there were societies that could keep dogs, that had food surpluses, that had dogs out of desire and that these weren’t war dogs that could cause damage.”

International

UK braces for potential CO₂ shortage amid Middle East tensions

The government of United Kingdom is preparing contingency measures amid fears of a potential shortage of carbon dioxide (CO₂), which could impact the agri-food industry if the Strait of Hormuz remains blocked due to the ongoing conflict in the Middle East, The Times reported on Thursday.

According to the newspaper, officials assessed this scenario during a recent crisis meeting aimed at evaluating the consequences of a prolonged conflict, triggered on February 28 by joint attacks from United States and Israel against Iran.

Under this scenario, CO₂ supplies—primarily a byproduct of fertilizer production using natural gas—could fall by up to 18%, affecting multiple sectors including agriculture and food production.

The gas is widely used in the slaughter of pigs and poultry, as well as in extending the shelf life of packaged foods. Breweries could also face disruptions due to reduced availability.

“I don’t want to comment on a leak, but now that the information is out there, I hope people feel reassured knowing we are working on it,” said Peter Kyle, Secretary of State for Business and Trade, in remarks to Sky News.

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While a drop in CO₂ supply is not expected to cause major shortages in supermarkets, it could limit product variety, The Times noted, citing access to internal government documents.

To mitigate the impact, authorities are considering prioritizing CO₂ supply for critical sectors such as healthcare and civil nuclear energy, where it is used in cooling systems for blood reserves, organs, vaccines, and electricity generation. The government may also request domestic producers to increase output.

Central America

El Salvador and Paraguay approve 2026–2028 cooperation program

The governments of El Salvador and Paraguay approved the 2026–2028 Cooperation Program, which includes six joint development projects, according to Salvadoran Vice Minister of Foreign Affairs Adriana Mira.

Mira stated that El Salvador will act as the “main provider of cooperation,” contributing five initiatives focused on road infrastructure, tourism, and local development. She also noted that one of the projects will be led by the Paraguayan side, although no further details were disclosed.

The agreement was reached during the Second Meeting of the Joint Commission on Technical and Scientific Cooperation between both countries.

According to Paraguay’s Ministry of Foreign Affairs, the First Meeting of the Political Consultation and Bilateral Coordination Mechanism was also held, with the participation of Vice Minister Víctor Verdún.

In an official statement, the Paraguayan government reported that both delegations agreed to identify mechanisms to promote competitiveness, economic growth, and market access. They also committed to signing agreements related to air transport cooperation.

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International

Macron meets Machado, stresses need for democratic transition in Venezuela

Emmanuel Macron met on Monday at the Élysée Palace with Venezuelan opposition leader María Corina Machado, where they discussed the importance of advancing a democratic transition in Venezuela.

In a message shared on social media, Macron highlighted Machado’s commitment to freedom and stressed the need to achieve a transition that is peaceful and respects the will of the Venezuelan people.

“I received María Corina Machado, Nobel Peace Prize laureate. Together, we discussed her commitment to freedom and the importance of achieving a democratic, peaceful transition in Venezuela that respects the will of its people,” he wrote.

For her part, Machado expressed her “deep gratitude” to Macron and to France for their support of democracy and freedom in Venezuela.

“We have gone through a long and painful journey, and we are now very close to freedom. Venezuela will become a nation of free and equal men and women—prosperous, safe, and united,” she said.