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.
“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.”
– 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.
“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.
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
U.S. and Mexico Reach Deal to Address Water Deficit Under 1944 Treaty
The United States and Mexico have reached an agreement to comply with current water obligations affecting U.S. farmers and ranchers and for Mexico to cover its water deficit to Texas under the 1944 Water Treaty, the U.S. Department of Agriculture said in a statement.
The department уточified that the agreement applies to both the current cycle and the water deficit from the previous cycle.
On Monday, U.S. President Donald Trump accused Mexico of failing to comply with the water-sharing treaty between the two countries, which requires the United States to deliver 1.85 billion cubic meters of water from the Colorado River, while Mexico must supply 432 million cubic meters from the Rio Grande.
Mexico is behind on its commitments. According to Washington, the country has accumulated a deficit of more than one billion cubic meters of water over the past five years.
“This violation is severely harming our beautiful crops and our livestock in Texas,” Trump wrote on Monday.
The Department of Agriculture said on Friday that Mexico had agreed to supply 250 million cubic meters of water starting next week and to work toward closing the shortfall.
Agriculture Secretary Brooke Rollins, quoted in the statement, said Mexico delivered more water in a single year than it had over the previous four years combined.
Trump has said that if Mexico continues to fall short of its obligations, the United States reserves the right to impose 5% tariffs on imported Mexican products.
Mexico’s Deputy Foreign Minister for North America, Roberto Velasco, said that a severe drought in 2022 and 2023prevented the country from meeting its commitments.
International
Several people shot in attack on Brown University campus
Several people were shot on Saturday in an attack on the campus of Brown University, in the northeastern United States, local police reported.
“Shelter in place and avoid the area until further notice,” the Providence Police Department urged in a post on X. Brown University is located in Providence, the capital of the state of Rhode Island.
U.S. President Donald Trump said on his social media platform Truth Social that he had been briefed on the situation and that the FBI was on the scene.
At 5:52 p.m. local time (11:52 p.m. GMT), Brown University said the situation was still “ongoing” and instructed students to remain sheltered until further notice.
After initially stating that the suspect had been taken into custody, Trump later posted a second message clarifying that local police had walked back that information. “The suspect has NOT been apprehended,” the U.S. president said.
International
Colombia says it would not reject Maduro asylum request as regional tensions escalate
The Colombian government stated on Thursday that it would have no reason to reject a potential asylum request from Venezuelan President Nicolás Maduro should he leave office, as regional tensions persist over the deployment of U.S. military forces in the Caribbean since August.
“In the current climate of tension, negotiations are necessary, and if the United States demands a transition or political change, that is something to be assessed. If such a transition results in him (Maduro) needing to live elsewhere or seek protection, Colombia would have no reason to deny it,” said Colombian Foreign Minister Rosa Villavicencio in an interview with Caracol Radio.
However, Villavicencio noted that it is unlikely Maduro would choose Colombia as a refuge. “I believe he would opt for someplace more distant and calmer,” she added.
Colombian President Gustavo Petro also commented on Venezuela’s situation on Wednesday, arguing that the country needs a “democratic revolution” rather than “inefficient repression.” His remarks followed the recent detention and passport cancellation of Cardinal Baltazar Porras at the Caracas airport.
“The Maduro government must understand that responding to external aggression requires more than military preparations; it requires a democratic revolution. A country is defended with more democracy, not more inefficient repression,” Petro wrote on X (formerly Twitter), in a rare public criticism of the Venezuelan leader.
Petro also called for a general amnesty for political opponents and reiterated his call for forming a broad transitional government to address Venezuela’s prolonged crisis.
Since September, U.S. military forces have destroyed more than 20 vessels allegedly carrying drugs in Caribbean and Pacific waters near Venezuela and Colombia, resulting in over 80 deaths.
U.S. President Donald Trump has repeatedly warned that attacks “inside Venezuela” will begin “soon,” while Maduro has urged Venezuelans to prepare for what he describes as an impending external aggression.
U.S. and Mexico Reach Deal to Address Water Deficit Under 1944 Treaty
Several people shot in attack on Brown University campus
Colombia says it would not reject Maduro asylum request as regional tensions escalate
Tec de Monterrey honors one of its students for his contribution to nanotechnology in medicine
Defense Minister commends salvadoran soldier for Central American Cross Country victory
Extension of the state of emergency approved in southern Chile
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