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Phys.org / Ctenophore research points to earlier origins of brain-like structures
New 3D reconstructions of a key sensory organ in ctenophores reveal an unexpected structural and functional complexity. The findings suggest that an elementary brain may have already appeared in our most ancient relatives, ...
Phys.org / Self-propelling microbes switch up swimming strategy to optimize light intake
Researchers in Hong Kong and the UK have revealed how one species of self-propelling microbes can actively change the path of their swimming motions, depending on how much light they receive. Reporting in Physical Review ...
Phys.org / Female astronauts face clotting risks, five-day weightlessness simulation suggests
Just a few days in simulated microgravity can subtly change the way women's blood clots, sparking bigger questions about health monitoring protocols for astronauts who can spend six months or more in orbit, say Simon Fraser ...
Medical Xpress / Tundra tongue: The science behind a very cold mistake
Touching your tongue to frozen metal must be a rite of passage if you're a five-year-old boy from a cold place. It's possibly more irresistible than hopping in mud puddles or sampling a newly frosted cake. But is it dangerous? ...
Phys.org / Ancient plant-eater with a twisted jaw and sideways-facing teeth was a 'living fossil' in its own time
In a dry riverbed in Brazil, in a dense forest near the Amazon, a team of paleontologists found a fossilized jawbone from an ancient animal. Over the course of their fieldwork, they found eight similar bones, each around ...
Phys.org / Burned permafrost peatlands release carbon for years after wildfires, researchers find
In the face of climate change, permafrost peatland wildfires could play more of a role in the destructive cycle of global warming, University of Alberta research suggests.
Phys.org / Rewilding could fill gap left by Panama's lost giants
Many large herbivores that once roamed modern-day Panama have declined or died out—including the 6-meter-long giant ground sloth and elephant-related creatures called Cuvieronius. New research suggests that introducing ...
Phys.org / Scientists clock a driving factor in the evolution of error correction
All complex biological systems—like the DNA, RNA and proteins constantly being copied and built within our cells—are prone to errors. That means as life evolved to be more elaborate, it also had to evolve error-correcting ...
Phys.org / Whole-genome study of koalas shows genetic diversity alone can misread extinction risk
A new study published in Science is challenging long-held assumptions about how we measure genetic risk in endangered species. Researchers analyzed whole genomes from hundreds of koalas, finding that populations previously ...
Phys.org / What Geminga's 100 TeV cutoff may mean for cosmic-ray acceleration in the Milky Way
For the first time, the Tibet ASγ Experiment has successfully measured magnetohydrodynamic (MHD) turbulence on scales below one parsec (approximately 3.3 light-years) within the gamma-ray halo surrounding the Geminga pulsar ...
Phys.org / How Japanese red elder plants save two lives with one fruit drop
Japanese red elder plants safeguard their own survival when they drop fruits infested by Heterhelus beetle larvae, as well as the survival of these larvae. A Kobe University study changes the narrative on how a plant and ...
Phys.org / Charred pot residues reveal prehistoric Europeans' surprisingly complex cuisines
Thousands of years ago, European communities used a variety of plant and animal products to create elaborate meals, according to a study published in the open-access journal PLOS One by Lara González Carretero of the University ...
