20 de enero de 2021
ÚLTIMAS NOTICIAS:
 1300x90
Hispanic World

Mexico find suggests humans lived in Americas much earlier than thought

Mexico City, Jul 22 (efe-epa).- Archaeological research in a cave in northern Mexico has uncovered evidence that humans inhabited the zone 30,000 years ago, suggesting that man came to North America 15,000 years earlier than thought, according to an article Nature magazine published on Wednesday.

 Photo courtesy of Nature magazine provided on July 22, 2020, showing archaeologists investigating the Chiquihuite cave in Mexico's Zacatecas state, where stone tools have been found in layers of gravel dating to some 30,000 years ago, thus potentially pushing back the arrival of the first humans in the Western Hemisphere by some 15,000 years. EFE-EPA/Courtesy Devlin A. Gandy/ Nature Magazine/Editorial Use Only

Photo courtesy of Nature magazine provided on July 22, 2020, showing archaeologists investigating the Chiquihuite cave in Mexico's Zacatecas state, where stone tools have been found in layers of gravel dating to some 30,000 years ago, thus potentially pushing back the arrival of the first humans in the Western Hemisphere by some 15,000 years. EFE-EPA/Courtesy Devlin A. Gandy/ Nature Magazine/Editorial Use Only

Mexico City, Jul 22 (efe-epa).- Archaeological research in a cave in northern Mexico has uncovered evidence that humans inhabited the zone 30,000 years ago, suggesting that man came to North America 15,000 years earlier than thought, according to an article Nature magazine published on Wednesday.

The publication says that since 2012 a team from the Autonomous University of Zacatecas has been excavating in the Chiquihuite cave in the Astillero Mountains, where they have found almost 2,000 stone tools, of which 239 were resting in layers of gravel dating to between 25,000 and 32,000 years ago.

The "general opinion" up until this discovery has been that the first people arrived in the Americas from Asia about 15,000-16,000 years ago.

This figure is based on finds at the Monte Verde II site in Chile, which have been dated to 14,000 years ago.

According to Nature, the head of the new investigation, Ciprian Ardelean, believes that the cave was visited "occasionally," given that only relatively few ancient tools have been found there.

He told the magazine that ancient hunter-gatherers possibly used it as a shelter for a few decades, during particularly severe winters, noting that 26,000 years ago, during the last Ice Age, North America had been a "dangerous" area.

According to the investigators, Chiquihuite cave is quite isolated and could have provided shelter for people, protecting them from snowstorms, for instance.

The investigation has garnered some controversy, however.

A team of geneticists headed by Eske Willerslev at the University of Copenhagen looked for ancient human DNA in the dirt and gravel layers covering the bottom of the cave but found nothing.

In addition, Nature compared the investigation's results with those of François Lanoë, an archaeologist and anthropologist at the University of Arizona who warned that the tools found in the cave could have been displaced downwards into deeper layers of gravel by geological activity."

Meanwhile, Ardelean admitted that some of the tools could have been shifted to lower layers, although he said that the 239 oldest stone implements were found under an impenetrable layer of mud that formed during the height of the last Ice Age.

Histórico de noticias
"Democracy has prevailed," Biden proclaims in inaugural address

(Updates with more speech remarks, additional info)

Trump arrives in W. Palm Beach shortly before Biden is sworn in as president

Miami, Jan 20 (efe-epa).- Donald Trump arrived in Palm Beach, Florida, on Wednesday while still president, shortly before the inauguration of Joe Biden in...

Biden arrives in Washington to take the reins of a country in crisis

(Update 1: Adds details of inauguration ceremony, changes head, lede)

Argentina registers 50 aftershocks, no deaths in 6.4-magnitude quake

Buenos Aires, Jan 19 (efe-epa).- Argentine President Alberto Fernandez traveled on Tuesday to San Juan province, on the western border with Chile, to tour...

McConnell blames Trump for violent assault by supporters on Congress

Washington, Jan 19 (efe-epa).- The outgoing Senate majority leader, Mitch McConnell, on Tuesday accused President Donald Trump of provoking the violent...

Honduran private sector: Join forces to rebuild country

Tegucigalpa, Jan 18 (efe-epa).- The Honduran private sector is in a "state of calamity" due to the coronavirus pandemic, which has resulted in 134,111...

Harris resigns as senator, Biden helps NGO 2 days before inauguration

Washington, Jan 18 (efe-epa).- Vice President-elect Kamala Harris on Monday resigned her seat as a US senator from California, while President-elect Joe...

Guatemalan forces disperse migrant caravan on highway

Guatemala City, Jan 18 (efe-epa).- Guatemalan security forces on Monday dispersed a migrant caravan made up of more than 6,000 Hondurans looking to head...

Eccentric music producer Phil Spector dead of Covid complications

New York, Jan 17 (efe-epa).- Phil Spector, one of the most highly acclaimed modern music producers, the creator of the so-called "Wall of Sound," died on...

Argentina promulgates law making abortions easier to get

By Javier Castro Bugarin

Last year ties 2016 as hottest year in recorded history

Miami, Jan 14 (efe-epa).- Last year tied 2016 as the hottest year since records have been kept, according to a report published Thursday by NASA that...

Organized crime in Mexico selling fake Covid-19 vaccines

By Cristina Sanchez Reyes

Miami Beach holding festival showcasing tropical "Art Deco" legacy

By Ana Mengotti

Trump losing business support, putting future of his brand in danger

By Mario Villar

Trump asks supporters to avoid violence before inauguration

(Updates with Trump's 2nd video statement)

US Justice Dept. to charge several hundred in mob that invaded Congress

Washington, Jan 12 (efe-epa).- The US Department of Justice on Tuesday announced that it already has formally charged more than 70 people with assorted...

Brazil: China vaccine's 50.38 pct. effectiveness can halt pandemic

Sao Paulo, Jan 12 (efe-epa).- The anti-Covid vaccine developed by China's Sinovac pharmaceutical laboratory and which will be used and produced in Brazil is...

Congress calls for Trump impeachment despite Pence rejection

Update 1: Reworks lede, changes headline, adds info on impeachment attempt

US puts Cuba back on list of terrorism sponsors

Washington, Jan 11 (efe-epa).- The Donald Trump administration on Monday put Cuba back on the US list of sponsors of terrorism, from which that country had...

Twitter suspends more than 70,000 accounts sharing QAnon content

Washington, Jan 12 (efe-epa).- Twitter announced that it has suspended more than 70,000 accounts dedicated to sharing QAnon content following the attack on...

Buenos Aires: Argentine equine serum effective, safe for Covid-19 cases

Buenos Aires, Jan 11 (efe-epa).- The hyperimmune serum produced from horses in Argentina completed the last phase of its clinical studies and "demonstrated...

International tourism in Mexico down 45.6 pct. year-on-year in November

Mexico City, Jan 11 (efe-epa).- Mexico hosted 45.6 percent fewer international tourists last November than during the same month in 2019, with arrivals...

Mexico begins 2021 with legislative, economic battles with businessmen

By Pedro Pablo Cortes

Clamor growing for Trump to resign, but president remaining silent

By Alfonso Fernandez