Other Sciences News

Gopaulchan et al. established the previously suggested role of pH and temperature changes as robust predictors of chocolate flavor characteristics. Image credit: Sci.News.

Microbiota Composition, pH and Temperature Influence Key Flavor Attributes of Premium Chocolate

Aug 19, 2025 by News Staff

Cocoa (Theobroma cacao) bean fermentation is a spontaneous process involving interactions between various factors that contribute to the final flavors...

Liu et al. found that compared to non-coffee drinkers, adults who drank moderate amounts (1.5 to 3.5 cups per day) of unsweetened coffee or sugar-sweetened coffee were less likely to die during a 7-year follow up period. Image credit: Sci-News.com.

Caffeine in the Morning Boosts Mood, New Study Suggests

Aug 18, 2025 by Natali Anderson

New research indicates that caffeine consumption is associated with subsequent increases in positive affect, and this association is strongest within the...

Chemical structure of the cyclo[48]carbon [4]catenan. Image credit: Harry Anderson.

Chemists Synthesize New Carbon Allotrope

Aug 15, 2025 by News Staff

Carbon can exist in different forms — called allotropes — giving it completely different properties from color to shape to hardness. For example,...

Forensic facial reconstruction of another Australopithecus species - A. afarensis. Image credit: Cicero Moraes / CC BY-SA 3.0.

Early Homo and Australopithecus Co-Existed in Ethiopia before 2.5 Million Years Ago

Aug 13, 2025 by Enrico de Lazaro

New hominin fossils recovered from the Ledi-Geraru Research Project area in the Afar region of Ethiopia suggest the presence of early Homo at 2.78 and...

Velazquez-Arcelay et al. found that genetic material from Neanderthal ancestors may have contributed to the propensity of some people today to be early risers, the sort of people who are more comfortable getting up and going to bed earlier. Image credit: Holger Neumann / Neanderthal Museum.

Study: Genetic Variant Inherited from Neanderthals Reduces Activity of Key Muscle Enzyme

Aug 12, 2025 by News Staff

The Neanderthal variant in AMPD1 decreases its enzymatic activity by 25% in lab-produced proteins and by up to 80% in the muscles of genetically engineered...

Primates historically transitioned across diverse climates: (A) transition between the temperate (top), arid (left), tropical (bottom), and cold (right), main climates, for all primates; arrow size represents the proportion of phylogenetic branches with the respective transitions; (B) climatic transitions for early primates, who were living between 65 and 47.8 million years ago; (C) climatic transitions for species that were living between 47.8 and 23.03 million years ago; (D) climatic transitions for species that were living from 23.03 million years ago to the present. Image credit: Avaria-Llautureo et al., doi: 10.1073/pnas.2423833122.

Early Primates Primarily Inhabited Cold and Temperate Climates, New Study Suggests

Aug 12, 2025 by News Staff

Textbooks often portray primates as originating, evolving, and dispersing exclusively within warm tropical forests. This tends to come from fossil evidence...

An archaic hominin. Image credit: Ninara / CC BY 2.0.

Mystery Archaic Hominins Lived in Sulawesi 1.04 Million Years Ago

Aug 7, 2025 by News Staff

The dispersal of archaic hominins beyond mainland Southeast Asia (Sunda) represents the earliest evidence for humans crossing ocean barriers to reach isolated...

Paestum honey: (A) underground shrine in Paestum, Italy; (B) one of the hydrias on display alongside a Perspex box containing the residue at the Ashmolean Museum in 2019; (C) graphic representation of the arrangement of the bronze jars inside the shrine; (D) sample from the core of the residue. Image credit: da Costa Carvalho et al., doi: 10.1021/jacs.5c04888.

Bronze Jars Found in Italy Contain 2,500-Year-Old Honey, Archaeologists Find

Jul 30, 2025 by News Staff

Archaeologists have re-examined a 2500-year-old residue found in bronze jars at an underground shrine in Paestum, Italy, previously identified as a wax/fat/resin...

Australopithecus Males Were Much Larger than Females, Paleoanthropologist Says

Jul 30, 2025 by News Staff

Two extinct hominins, Australopithecus afarensis and Australopithecus africanus, were significantly more dimorphic than chimpanzees and modern humans;...

Memories of navigating familiar paths are more fluid than previously thought, activating different neurons with each journey. Image credit: Zeinab Vessal.

Memories Drift across Neurons over Time, Animal Study Suggests

Jul 30, 2025 by News Staff

The brain’s internal GPS changes each time mice navigate a familiar, static environment, according to a new study by neurobiologists from Northwestern...

NASA’s high-flying ER-2 airplane carries instrumentation in this artist’s impression of the Airborne Lightning Observatory for Fly’s Eye Geostationary Lightning Mapper Simulator and Terrestrial Gamma-ray Flashes (ALOFT) mission to record gamma rays (colored purple for illustration) from thunderclouds. Image credit: NASA / ALOFT team.

New Study Provides First Precise Explanation for How Lightning Initiates in Nature

Jul 28, 2025 by News Staff

In a new paper, Penn State Professor Victor Pasko and his colleagues described how they determined strong electric fields in thunderclouds accelerate electrons...

A model of a Neanderthal man in modern clothing. Image credit: H. Neumann / Neanderthal Museum.

Serious Neurological Condition May Be Linked to Neanderthal Genes

Jul 22, 2025 by News Staff

Interbreeding between anatomically modern Homo sapiens and Neanderthals thousands of years ago may be responsible for Chiari Malformation Type 1, a serious...

This map shows 332 submarine canyon networks on the seafloor of the Antarctic continent. Image credit: Riccardo Arosio & David Amblas, doi: 10.1016/j.margeo.2025.107608.

Researchers Create Catalog of Antarctic Submarine Canyons

Jul 21, 2025 by News Staff

Submarine canyons are deep, large-scale incisions found on most of the world’s continental margins. In Antarctica, they are widespread features driving...

Using Higgs echo spectroscopy, Huang et al. uncovered unconventional echo formation caused by inhomogeneous broadening and soft quasiparticle bands, which dynamically evolve under THz driving. Image credit: Ames National Laboratory.

Physicists Discover Unconventional Quantum Echo in Niobium Superconductors

Jul 21, 2025 by News Staff

Physicists from Ames National Laboratory and Iowa State University have demonstrated the emergence of a Higgs echo in niobium superconductors. Their discovery...

The occasional use of stone tools as ‘strike-a-lights’ was a technocultural feature shared among Neanderthals in France.

Neanderthals Had Local Food Traditions, New Research Suggests

Jul 17, 2025 by News Staff

Amud and Kebara caves in northern Israel are two broadly contemporaneous Middle Paleolithic sites dated to 70,000-50,000 years ago, both located in the...

Berry et al. demonstrate that erythritol -- at a concentration typically contained in a standard-size commercially available artificially sweetened beverage -- adversely affects brain microvascular endothelial cell oxidative stress, eNOS activation and NO production, ET-1 expression, and t-PA release in vitro. Image credit: Tafilah Yusof.

Study: Common Sweetener Erythritol Can Impact Brain Cells, Boost Stroke Risk

Jul 16, 2025 by News Staff

Erythritol, a common non-nutritive sweetener, is associated with increased risk of cardiovascular and cerebrovascular events, according to new research...

The cases presented by Towers et al. are among the first recorded where wild killer whales (Orcinus orca) used prey and other items to instigate interactions with humans. Image credit: Towers et al., doi: 10.1037/com0000422.

Wild Killer Whales Sometimes Offer Food to Humans, Scientists Say

Jul 7, 2025 by News Staff

In a paper published online in the Journal of Comparative Psychology, marine biologists report on 34 interactions spanning two decades in which killer...

Nielsen et al. find lactose intolerance may link consuming dairy, nightmares, and poor sleep. Image credit: Micha HNBS.

Study Finds Association between Lactose Intolerance and Nightmares

Jul 1, 2025 by News Staff

In a new study, researchers questioned 1,082 students at MacEwan University about the quality of their sleep, their eating habits, and any perceived link...

This image shows Oenothera biennis, a flower that produces an oil containing a high content of linolenic acid. Image credit: Georg Slickers / CC BY-SA 4.0.

Omega-6 Fatty Acids Do Not Raise Inflammatory Markers, Study Shows

Jul 1, 2025 by News Staff

In a large community-based study, researchers at Fatty Acid Research Institute observed weak but statistically significant inverse associations between...