Tag Archives: Roots

Human Review: Uncovering the Ancient Roots of Humanity in the Exciting New BBC Documentary

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TX Date: 21-07-2025, Texas Week: 29, Embargo: 08-07-2025 00:00:00:00:00:00:00:00:00:00:00:00:00: copyright: BBC Studios, Credit Line: BBC / BBC Studios

A dramatic reconstruction of early modern Homo sapiens in Africa

BBC/BBC Studios

human
Available on BBC iPlayer (UK); US PBS (September 17)

Based on my observations, science documentaries often fall into two categories, akin to French and Italian cuisines. (Hear me out before you judge that comparison.) The first category employs intricate techniques for a deep experience. The second is more straightforward, allowing the content to shine naturally.

Both documentary styles can yield impressive results in their own ways. human, a five-part BBC series exploring the roots of our genus, Homo, undoubtedly fits into the latter category. It weaves together compelling stories, stunning visuals, and the charismatic presence of paleontologist Ella Al Shamahi, inviting viewers to embark on a heartfelt journey through six million years of our human history. No flashy add-ons are necessary.

https://www.youtube.com/watch?v=i7dnkjbe0i4

The first episode delves into complex inquiries. When exactly did our species emerge? Multiple perspectives yield varying answers. Was it 300,000 years ago when humans began to exhibit features resembling ours? Was it when our skulls, according to Al Shamahi, transformed to become softer and more spherical? Or, more poetically, when we developed remarkable traits like intricate language, abstract thought, and cooperative behavior?

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The series intertwines fascinating narratives, stunning visuals, and the captivating presence of Ella Al Shamahi.
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It’s an engaging episode, particularly when the narrative shifts to other extinct human species. For instance, Al Shamahi’s exploration of Indonesia introduces us to Homo floresiensis, a meter-tall human uniquely adapted to life on Flores. The discovery of these “hobbits” in the Liang Bua Caves two decades ago reshaped our understanding of ancient human biology. Their small brains provide insights into tool use, with their long arms and short stature diverging from other human species.

Episode three highlights the fate of our most famous relative, the Neanderthals. As we spread into Europe and Asia, they adapted to colder climates but ultimately faced extinction.

Throughout the series, Al Shamahi showcases amazing paleontological discoveries made over recent decades (many of which you may have read about in New Scientist). For instance, rainbow feathers from birds like the red kite have garnered interest regarding their significance to Neanderthals. Meanwhile, the perikymata—a growth line in tooth enamel—affirms that H. sapiens experienced extended childhoods, leveraging our cognitive capacity.

Over just five episodes, human cannot cover every aspect of our evolutionary story. Yet, it illuminates how H. sapiens has been shaped by climate influences, the flora and fauna that provide for us, other human species, and collaborative nomadic groups that shared skills, knowledge, and DNA, allowing us to thrive and eventually build cities.

This dimension of H. sapiens portrays humanity as the ultimate survivor, capable of progression and dominance over the Earth. In contrast, human offers a more humble narrative, emphasizing our species alongside our ancient relatives.

Tracking Human Evolution
Gain insights behind the scenes of the new BBC series human with Ella Al Shamahi on NewsCientist.com/Video

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In a captivating and poignant narrative, Ella Al Shamahi addresses the inadequate frontline science conducted in regions perceived as inhospitable to Western researchers. Discover Neanderthal skeletons exhibiting severe disabilities unearthed in present-day Iraq—a striking reminder of the discoveries we’ve overlooked.

Bethan Ackerley is a sub-editor at New Scientist. She has a passion for science fiction, sitcoms, and all things eerie. Follow her on Twitter @inkerley

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Source: www.newscientist.com

Beneficial microorganisms in plant roots enhance the flavor of tea

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Microbes appear to influence how well tea plants absorb nutrients

Artur Szymczyk/Alamy

Tweaking the microbial community at the base of the tea plant could make your favorite tea taste even better.

Just as the bacteria that live in our guts influence our health, the microbes that live in and around plant roots play a role in how plants absorb nutrients from the soil. Masu. But little is known about their effects on tea flavor and nutritional content, he says. Yang Zhenbiao At the University of California, Riverside.

To learn more, Yang and his colleagues collected and analyzed tea plants (Camellia sinensis) is grown in Fujian Province, China. Researchers found that certain soil microorganisms are involved in increased nitrogen uptake, which increases the production of a chemical called theanine in plant roots, resulting in increased production of a chemical called theanine, especially in the leaves of a variety called Roguey. It turns out that the level has increased.

Theanine adds a rich flavor to beer, and the amount of theanine contained is considered an important indicator of the quality of tea. It also has antioxidant and anti-inflammatory properties that can counteract the stimulant effects of caffeine, Yang says.

In the next step of the study, the researchers extracted the 21 most beneficial microorganisms for theanine from the soil and generated a custom microbial community. Its composition was very similar to that found naturally around Logi.

When this mixture was applied to the roots of other types of tea plants, theanine levels were increased even in the roots of tea plants grown in nitrogen-poor soils. “Not only does it have great health benefits, but it also improves the sweetness and flavor of the tea,” says Yang.

The research team hopes that the customized microbial community could be used in the future to perfect the quality of tea and improve the nutritional value of other plants such as rice.

“Improving nitrogen absorption efficiency can also reduce dependence on fertilizers, which could also have a major impact on the future of agriculture,” says Yang.

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Source: www.newscientist.com