Discoveries gleaned from ancient human DNA
Four research articles published in Nature follow the genetic traces and geographical origins of human diseases far back in time. The analyses provide detailed pictures of prehistoric human diversity and migration, while proposing an explanation for.....»»
Structural analysis reveals how human eyelashes promote water drainage
Throughout human evolution, body and facial hair have notably diminished, yet eyelashes have remained a distinguishing feature. The physiological or functional purpose of eyelashes—traditionally thought to be for catching dust or filtering air—ha.....»»
Discovery of enzyme pathway may lead to lifesaving leishmaniasis treatments
A breakthrough in understanding how a single-cell parasite makes ergosterol (its version of cholesterol) could lead to more effective drugs for human leishmaniasis, a parasitic disease that afflicts about 1 million people and kills about 30,000 peopl.....»»
Inequality weakens local governance and public satisfaction, study finds
Local governments in developing countries are crucial for providing public services that promote human development and address challenges like extreme weather, unemployment and crumbling infrastructure. Yet, they often face difficulties in implementi.....»»
Ferns" ancient resilience aids modern ecosystem recovery after disasters
Scientists have suggested an updated framework for the role of ferns in environmental recovery from disaster. Instead of competing with other organisms, ferns may act as facilitators that ease the way for other plants and animals to re-establish them.....»»
Mitigating animal-vehicle collisions with field sensors, AI and ecological modeling
Collisions between animals and vehicles are a threat to conservation efforts and human safety, and have a massive cost for transport infrastructure managers and users......»»
Biosensors mimic human olfactory system to discriminate between very similar odors
The human olfactory system discriminates between thousands of odors by interacting specifically with olfactory receptors on sensory neurons. Each receptor can detect several odorants at different intensities, and the same odorant can activate more th.....»»
The technosphere: A hidden long-term carbon sink in everyday items
We know a lot about how much fossil-derived carbon is emitted to the atmosphere but less about how much is stored in human-made products......»»
Giant sloths and mastodons coexisted with humans for millennia in Americas, new discoveries suggest
Sloths weren't always slow-moving, furry tree-dwellers. Their prehistoric ancestors were huge—up to 4 tons (3.6 metric tons)—and when startled, they brandished immense claws......»»
Denali Fault found to have torn apart ancient joining of two landmasses
New research shows that three sites spread along an approximately 620-mile portion of today's Denali Fault were once a smaller united geologic feature indicative of the final joining of two land masses. That feature was then torn apart by millions of.....»»
Scientists document rich biodiversity along underexplored Chilean coastline
An international team of scientists on board a recent Schmidt Ocean Institute R/V Falkor (too) expedition surveyed nearly 20 methane seeps, some of which are new discoveries, and four submarine canyon systems previously never before seen by humans......»»
Ancient Mars" thick crust could have supported hidden water reservoirs and rare magmas, new research suggests
A new study explores how variations in Mars' crustal thickness during its ancient history may have influenced the planet's magmatic evolution and hydrological systems. The research, published in Earth and Planetary Science Letters, suggests that the.....»»
Extended chart of life shows ancient species may have evolved slower and lasted longer
If all the world's a stage and all the species merely players, then their exits and entrances can be found in the rock record. Fossilized skeletons and shells clearly show how evolution and extinction unfolded over the past half a billion years, but.....»»
Study reveals how transcription factors navigate DNA architecture to shape cellular identity
A new study led by Prof. Yosef Buganim from the Hebrew University of Jerusalem and Dr. Abdenour Soufi from the University of Edinburgh reveals how transcription factors (TFs)—key proteins that regulate gene activity—navigate DNA and chromatin str.....»»
Astronaut-on-a-chip: Multi-organ tissue chips simulate space radiation"s impact on human health
As astronauts venture further into space, their exposure to harmful radiation rises. Researchers from Columbia University are simulating the effects of space radiation here on Earth to determine its impact on human physiology using multi-organ tissue.....»»
UN experts urge three "transformations" for nature
Human societies need a radical overhaul to stop the destruction of the planet, according to the UN biodiversity expert panel's "transformative change" report released Wednesday......»»
Unlocking puberty secrets: What frogs reveal about human growth
Tadpoles are to frogs as oranges are to apples......»»
New method maps hundreds of proteins in cell nuclei simultaneously
Caltech researchers have developed a new method to map the positions of hundreds of DNA-associated proteins within cell nuclei all at the same time. The method, called ChIP–DIP (Chromatin ImmunoPrecipitation Done In Parallel), is a versatile tool f.....»»
Comprehensive analysis reveals hidden genomic evolution of brown algae
Covering over 70% of Earth's surface, the oceans are home to countless life forms that maintain ecological balance and support human well-being. Among these, brown algae (Phaeophyceae) play a crucial role in sustaining coastal habitats, supporting ma.....»»
Ancient clay remedy may have potential to boost modern gut health
A team of scientists has discovered that an ancient medicinal clay known as Lemnian earth (LE) could inspire new understanding of how to support present-day gut health......»»
Building a backbone: Scientists recreate the body"s "GPS system" in the lab
Scientists at the Francis Crick Institute have generated human stem cell models which, for the first time, contain notochord—a tissue in the developing embryo that acts like a navigation system, directing cells where to build the spine and nervous.....»»