International

Oldest human relative walked upright 7 mn years ago: study

AFP

The earliest known human ancestor walked on two feet as well as climbing through trees around seven million years ago, scientists said Wednesday after studying three limb bones.

When the skull of Sahelanthropus tchadensis was discovered in Chad in 2001, it pushed back the age of the oldest known representative species of humanity by a million years.

Nicknamed “Toumai”, the nearly complete cranium was thought to indicate that the species walked on two feet because of the position of its vertebral column and other factors.

However the subject triggered fierce debate among scientists, partly due to the scarcity and quality of the available bones, with some even claiming that Toumai was not a human relative but just an ancient ape.

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In a study published in the Nature journal on Wednesday, a team of researchers exhaustively analysed a thigh bone and two forearm bones found at the same site as the Toumai skull.

“The skull tells us that Sahelanthropus is part of the human lineage,” said paleoanthropologist Franck Guy, one of the authors of the study.

The new research on the limb bones demonstrates that walking on two feet was its “preferred mode of getting around, depending on the situation,” he told a press conference.

But they also sometimes moved through the trees, he added.

– ‘Not a magical trait’ –

The leg and arm bones were found alongside thousands of other fossils in 2001, and the researchers were not able to confirm that they belonged to the same individual as the Toumai skull.

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After years of testing and measuring the bones, they identified 23 characteristics which were then compared to fossils from great apes as well as hominins — which are species more closely related to humans than chimpanzees.

They concluded that “these characteristics are much closer to what would be seen in a hominin than any other primate,” the study’s lead author Guillaume Daver told the press conference.

For example, the forearm bones did not show evidence that the Sahelanthropus leaned on the back of its hands, as is done by gorillas and chimpanzees.

The Sahelanthropus lived in an area with a combination of forests, palm groves and tropical savannahs, meaning that being able to both walk and climb through trees would have been an advantage.

There have been previous suggestions that it was the ability to walk on two feet that drove humans to evolve separately from chimpanzees, putting us on the path to where we are today.

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However the researchers emphasised that what made Sahelanthropus human was its ability to adapt to its environment.

“Bipedalism (walking on two legs) is not a magical trait that strictly defines humanity,” paleontologist Jean-Renaud Boisserie told the press conference.

“It is a characteristic that we find at the present time in all the representatives of humanity.”

– Our ‘bushy’ family tree –

Paleoanthropologist Antoine Balzeau of France’s National Museum of Natural History said the “extremely substantial” study gives “a more complete image of Toumai and therefore of the first humans”.

It also bolstered the theory that the human family tree is “bushy”, and was not like the “simplistic image of humans who follow one another, with abilities that improve over time,” Balzeau, who was not involved in the research, told AFP.

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Daniel Lieberman, a professor of human evolutionary biology at Harvard University, said in a linked paper in Nature that the study’s “authors have squeezed as much information as possible from the fossil data”.

But he added that the research will not offer “full resolution” of the debate.

Milford Wolpoff, a paleoanthropologist at the US University of Michigan cast doubt on whether Toumai is a hominin, telling AFP that “extraordinary claims require extraordinary evidence”.

Wednesday’s study was carried out by researchers from the PALEVOPRIM paleontology institute, a collaboration between France’s CNRS research centre and Poitiers University, as well as scientists in Chad.

Guy said the team hopes to continue its research in Chad next year — “security permitting”.

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Chadian paleontologist Clarisse Nekoulnang said the team was “trying to find sites older than that of Toumai”.

International

Colombia to Send High-Level Delegation to Ecuador to Ease Trade Tensions

Colombia’s Ministry of Foreign Affairs confirmed on Friday that, at the instruction of President Gustavo Petro, a high-level delegation will travel to Ecuador in an effort to normalize bilateral relations, which have deteriorated following the imposition of reciprocal tariffs.

“In line with Colombia’s policy of good neighborliness and the spirit of cooperation and integration that guides its foreign policy,” the Foreign Ministry said in a statement, adding that the delegation will be led by Foreign Minister Rosa Villavicencio and Defense Minister Pedro Sánchez.

“Following instructions from the Presidency of the Republic, and as has been publicly reiterated, the Colombian delegation expects to reaffirm Colombia’s offer of support to the Republic of Ecuador to strengthen control over phenomena stemming from transnational organized crime,” the statement said.

The Foreign Ministry noted that the delegation will attend the meeting with a full willingness to engage in dialogue and to seek concrete solutions to the unilateral measures that have affected the longstanding relationship between the two neighboring countries.

Trade tensions between Ecuador and Colombia escalated on January 21, when Ecuadorian President Daniel Noboaimposed a 30% tariff on Colombian products, citing a lack of cooperation in anti-drug efforts. Colombia responded with similar measures and the suspension of energy exports, while Ecuador increased transportation costs for Colombian crude oil.

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Business associations in both countries have warned that the dispute is harming both economies and have called on the governments to resolve their differences through dialogue.

International

Super Bowl Halftime Show Puts Bad Bunny—and Immigration Politics—Back in the Spotlight

The long-standing argument that sports and politics should not mix may be put to the test on Sunday during the Super Bowl halftime show, which will be headlined by Puerto Rican superstar Bad Bunny, a choice that has sparked backlash from segments of the U.S. right wing.

Just one week after his headline-making appearance at the Grammy Awards—where he sharply criticized the United States’ anti-immigration policies—Bad Bunny will once again take center stage on the global spotlight with his performance at the NFL final in Santa Clara, California.

Beyond the expectations surrounding the show itself, speculation has grown over whether the artist could again use the platform to protest policies associated with the administration of former President Donald Trump, in front of an audience expected to exceed 120 million viewers in the United States alone.

In fact, one of the most popular Super Bowl prop bets this year revolves around whether the Puerto Rican singer will deliver a direct message against ICE (U.S. Immigration and Customs Enforcement), similar to the one he delivered at the Grammys last Sunday.

While few expect Bad Bunny to repeat such a pointed statement, the mere speculation highlights the delicate balance the NFL must manage during the most-watched broadcast of the year.

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The world’s most powerful sports league has drawn criticism from the MAGA movement since announcing in September that Bad Bunny would headline a halftime show largely performed in Spanish.

Trump himself declined to attend the matchup between the New England Patriots and the Seattle Seahawks, despite having made history last year as the first sitting U.S. president to attend a Super Bowl. He described the musical lineup—which also includes outspoken critics such as Green Day—as “a terrible choice” that would “sow hatred.” In response, his supporters have organized an alternative event dubbed the “All-American Halftime Show,” featuring like-minded artists such as Kid Rock.

International

Venezuela Debates Broad Amnesty Law Covering 27 Years of Chavismo

Venezuela’s Parliament began debating on Thursday a sweeping amnesty bill that would cover the 27 years of Chavismo in power, while explicitly excluding serious human rights violations and crimes against humanity.

The proposed legislation, titled the “Amnesty Law for Democratic Coexistence,” was introduced by interim President Delcy Rodríguez, who assumed power following the capture of Nicolás Maduro during a U.S. military operation.

The legislative session was convened for Thursday afternoon, with lawmakers holding an initial discussion focused on the general principles of the bill. This phase precedes a consultation process with civil society, after which the proposal will move to a final debate examining each article individually.

According to a draft of the bill obtained by AFP, the amnesty would apply to individuals accused of crimes such as “treason,” “terrorism,” and “incitement to hatred,” charges that were frequently brought against political prisoners over the past decades. The scope also includes offenses ranging from acts of rebellion to punishments imposed for social media posts or messages sent through private messaging services.

The bill’s explanatory text emphasizes reconciliation, stating that it seeks to move away from “vengeance, retaliation, and hatred” in favor of “opening a path toward reconciliation.”

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However, the proposal explicitly excludes from its benefits crimes such as “serious human rights violations, crimes against humanity, war crimes, intentional homicide, corruption, and drug trafficking.”

These exclusions, the text notes, are based on strict compliance with the Venezuelan Constitution, which already prohibits granting amnesties or pardons for such offenses.