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
Mexican government prioritizes 191 communities after deadly floods
Mexican President Claudia Sheinbaum confirmed on Wednesday that the death toll from recent rains and floods across several central states has risen to 66, while the federal government has activated air bridges and prioritized assistance in 191 isolated communities.
“Unfortunately, 66 people have died, and 75 remain missing,” the president said during her morning press conference. She added that the official death toll will be updated later in a new report.
As of Tuesday, authorities had reported 64 fatalities. Sheinbaum also announced the creation of a public information center to centralize official data on the deceased, missing persons, damaged homes, and cut-off communities.
According to the president, the number of missing persons has decreased thanks to coordination with state authorities.
“Through calls to phone line 079, 103 people who had been reported missing have now been located,” she explained.
Priority Municipalities
The president noted that the federal government has classified 191 communities as ‘priority’, a designation based mainly on the percentage of homes affected.
International
New road and bridge explosions raise alarm amid indigenous protests in Ecuador
Ecuadorian authorities are investigating two explosions that occurred early Wednesday, one on a road in the southern part of the country and another under a bridge in Guayas province. These incidents follow the car bomb explosion in the coastal city of Guayaquil, also in Guayas, which occurred the day before and left one person dead and 30 injured.
Press reports indicate that one person was injured and several vehicles were damaged in the explosion on the Cuenca-Girón-Pasaje road in the south.
“Besides yesterday’s explosion in Guayaquil, we have received reports of explosives placed on bridges along the Guayaquil-Machala and Machala-Cuenca routes to disrupt traffic,” said Roberto Luque, Minister of Infrastructure and Transport (MIT).
On his X social media account, Luque reported that authorities have been deployed to the sites to assess the damage and determine the current condition of the structures.
“What they haven’t achieved with their call for a strike, some are trying to achieve through terrorism,” he stated, referring to the 24 days of protests organized by the Confederation of Indigenous Nationalities (Conaie) against rising diesel prices and other demands.
The protests, called at a national level, have Imbabura province as their epicenter. Roadblocks have also been reported in the northern part of Pichincha province, whose capital is Quito, while activities in the rest of the country continue normally.
International
Armed forces target illegal mines in Northern Ecuador with bombing raids
Ecuador’s Armed Forces carried out an operation on Monday — including airstrikes — against illegal mining in the town of Buenos Aires, in the country’s north, Defense Minister Gian Carlo Loffredo reported.
The mountainous, gold-rich area has been a hotspot for illegal mining since 2017, located in the Andean province of Imbabura.
In 2019, former president Lenín Moreno deployed around 2,400 soldiers to the region in an attempt to curb the illegal activity. “The operation began with mortar fire, followed by gunfire and bombing runs by Supertucano aircraft,” Loffredo said in a video released by the Defense Ministry.
He added that the operation would continue on Tuesday with patrols across the area to locate possible members of “irregular armed groups that may have crossed from the Colombian border.”
The Armed Forces stated on X that the intervention focused on the “complete elimination of multiple illegal mining tunnels” in the areas known as Mina Nueva and Mina Vieja.
The operation coincided with the deployment of a military and police convoy into Imbabura, which has been the epicenter of protests against President Daniel Noboa since September 22, following his decision to scrap the diesel subsidy.
Mexican government prioritizes 191 communities after deadly floods
New road and bridge explosions raise alarm amid indigenous protests in Ecuador
Armed forces target illegal mines in Northern Ecuador with bombing raids
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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