Never miss a story

Get subscribed to our newsletter


×
The sun sets over the Okavango Delta, Botswana, April 25, 2018. VOA

A large ancient wetlands region spanning northern Botswana – once teeming with life but now dominated by desert and salt flats – may represent the ancestral homeland of all of the 7.7 billion people on Earth today, researchers said on Monday.

Their study, guided by maternal DNA data from more than 1,200 people indigenous to southern Africa, proposed a central role for this region in the early history of humankind starting 200,000 years ago, nurturing our species for 70,000 years before climate changes paved the way for the first migrations.


A lake that at the time was Africa’s largest – twice the area of today’s Lake Victoria – gave rise to the ancient wetlands covering the Greater Zambezi River Basin that includes northern Botswana into Namibia to the west and Zimbabwe to the east, the researchers said.

It has been long established that Homo sapiens originated somewhere in Africa before later spreading worldwide.


Their study, guided by maternal DNA data from more than 1,200 people indigenous to southern Africa, proposed a central role for this region in the early history. Pixabay

“But what we hadn’t known until this study was where exactly this homeland was,” said geneticist Vanessa Hayes of the Garvan Institute of Medical Research and University of Sydney, who led
the study published in the journal Nature.

The oldest-known Homo sapiens fossil evidence dates back more than 300,000 years from Morocco. The new study suggests that early members of our species as represented by the Morocco remains may not have left any ancestors living today, the researchers said.

“There is no contradiction between the presence of an early Homo sapiens-like skull in northern Africa, which may be from an extinct lineage, and the proposed southern African origin of the Homo sapiens lineages that are still alive,” added study co-author Axel Timmermann, a climate physicist at Pusan National University in South Korea.

The ancient lake Makgadikgadi began to break up about 200,000 years ago, giving rise to a sprawling wetland region inhabited by human hunter-gatherers, the researchers said.

Also Read- Research Shows that People with Genetic Autism are Likely to Report Self-Harm Thoughts

“It can be viewed as a massive extension of today’s Okavango Delta wetland area,” Timmermann said.

Changes in Earth’s axis and orbit caused climate, rainfall and vegetation shifts that set the stage for early migrations of this ancestral group of people away from the homeland region, first toward the northeast 130,000 years ago, then toward the southwest 110,000 years ago, Timmermann added.

“Our study provides the first quantitative and well-dated evidence that astronomically driven climate changes in the past caused major human migration events, which then led to the development of genetic diversity and eventually cultural, ethnic and linguistic identity,” Timmermann added. (VOA)


Popular

Wikipedia

Even free VPNs can do as much, as long as you go with a trustworthy provider such as those linked at the start.

By- Tejas Maheta

Free VPNs tend to get a bad rap (and often for good reasons, which we'll discuss in a second). Still, there are some safe and free VPN services recommended by expats - just click the link for some solid options. Next, scroll on to see how you can put them to good use while you're abroad.

Keep Reading Show less
Photo by Sirisvisual on Unsplash

This update provides important security updates and is recommended for all users.

The Cupertino-based tech giant Apple has started rolling out iOS 12.5.5 to older models of the iPhone and iPad. "This update provides important security updates and is recommended for all users," Apple said in the release notes for iOS 12.5.5.

The update is available for the iPad Air, the iPad mini 2, and iPad mini 3, as well as the 6th gen iPod touch, iPhone 5s, iPhone 6, and iPhone 6 Plus. All of these devices were dropped from support with iOS 13. The iOS 12.5.5 update addresses issues related to maliciously crafted PDFs, web content, and apps.

ALSO READ: The September Event Of Apple Inc.

Apple had previously rolled out iOS 12.5.4 in June with security fixes for WebKit vulnerabilities and other issues. Apple has also started seeded the first betas of iOS 15.1 as well as iPadOS 15.1. After removing SharePlay in iOS 15 beta 2, Apple has re-enabled the feature in the iOS 15.1, iPadOS 15.1, and tvOS 15.1 betas. Apple decided to pull SharePlay from the iOS 15 launch because it was not properly functioning and was still riddled with issues.

It adds features to the Health app like support for storing health-related data for Covid-19 immunisations and test results. With the latest iOS 15.1 Beta, one can now add vaccination cards to the Apple Wallet application. (IANS/ MBI)

Keep Reading Show less
Flickr

The National Basketball Association (NBA) and Lakme Fashion Week, announced a collaboration to celebrate "NBA 75"

The National Basketball Association (NBA) and Lakme Fashion Week, announced a collaboration to celebrate "NBA 75" the leagues landmark 75th Anniversary Season in 2021-22. As part of the collaboration, the NBA and Lakme Fashion Week will offer fashion designers from across India the opportunity to submit designs for an "NBA 75" collection. Select designs will be evaluated by a panel comprised of fashion designers, industry experts and local influencers, with the winning designer announced at the upcoming October edition of Lakme Fashion Week.

The winner will then be mentored by a leading fashion expert and will work alongside the NBA on a capsule collection to commemorate NBA 75. The NBA 75 range, which will include jerseys, t-shirts, headwear, sweatpants, hoodies, jackets and other apparel, will be unveiled at Lakme Fashion Week in March 2022.

"We are excited to collaborate with Lakme Fashion Week and offer Indian designers the chance to express their vision in celebration of NBA 75," said NBA Asia Executive Vice President & Managing Director Scott Levy. "The NBA and its players are synonymous with fashion and culture, and this friendly competition will showcase the talent and passion that Indian designers have for basketball and the NBA during our landmark 75th Anniversary Season." The collection will be available for purchase after the event on the NBAStore.in and at select retail destinations. (IANS/ MBI)


Keep reading... Show less