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Evolution Aug 5, 2024

Sex chromosomes may reduce 'sexual conflict' during evolution, say researchers

Researchers from Tokyo Metropolitan University have taken a big step in solving the mystery around why animals evolve sex chromosomes. It had long been proposed that sex chromosomes evolved to reduce "sexual conflict," the ...

Ecology Aug 2, 2024

Ancient Antarctic microorganisms are aggressive predators

In Antarctica there is a small lake, called Deep Lake, that is so salty it remains ice-free all year round despite temperatures as low as -20°C in winter. Archaea, a unique type of single-celled microorganism, thrive in this ...

Cell & Microbiology Jul 24, 2024

Scientists publish first experimental evidence for new groups of methane-producing organisms

A team of scientists from Montana State University has provided the first experimental evidence that two new groups of microbes thriving in thermal features in Yellowstone National Park produce methane—a discovery that could ...

Earth Sciences Jul 22, 2024

Microbes likely form magnetite in the South China Sea

Magnetite, the most magnetic mineral on Earth, is increasingly being found in seafloor environments that are rich in iron and have high methane flux. But how it forms in such settings—whether by microbes that thrive near ...

Biochemistry Jul 18, 2024

Discovery of a tRNA modification enzyme that also acts on nucleosides

The genetic information on DNA is transcribed into messenger RNA (mRNA) and translated to the amino acid sequence by transfer RNA (tRNA) on the ribosome. Modified nucleosides within RNA are involved in maintaining and regulating ...

Evolution Jul 17, 2024

Microbial structures in Antarctic lake could reveal more about how life evolved

In the depths of remote Antarctic lakes, communities of microorganisms are thriving where few life forms can survive. Scientists are studying structures formed by these communities to understand more about microscopic life ...

Evolution Jul 12, 2024

Insight into one of life's earliest ancestors revealed in new study

An international team of researchers led by the University of Bristol has shed light on Earth's earliest ecosystem, showing that within a few hundred million years of planetary formation, life on Earth was already flourishing.

Biotechnology Jul 11, 2024

Novel protein found to inhibit activity of CRISPR-Cas system

In a study published in Nature on July 3, researchers from the Institute of Biophysics of the Chinese Academy of Sciences and the University of Toronto, Canada, discovered a novel anti-CRISPR protein called AcrIF25, which ...

Astrobiology Jul 9, 2024

Increasing the understanding of early life on Earth could shape the search for life on other planets

Despite decades of research, there's still much scholars don't understand about life's beginnings and early evolution. A UC Riverside paper has opened the door to understanding more and to framing future studies that could ...

Earth Sciences Jun 24, 2024

CO₂ puts heavier stamp on temperature than previously thought, analysis suggests

A doubling of the amount of CO2 in the atmosphere could cause an increase in the average temperature on Earth from 7 to a maximum of 14 degrees. This is shown in the analysis of sediments from the Pacific Ocean off the coast ...

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