All stories — Page 28

24 Dec 2025

How embryos pause growth in diapause

A study in mice explains how embryonic stem cells stay able to become any cell during diapause. Different stresses slow metabolism but keep cell identity, and cells resume normal development when stress ends.

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24 Dec 2025

Crop losses threaten food security across Africa

Researchers say climate shocks, pests and diseases are increasing crop losses across Africa. Erratic rainfall, flooding and biological threats reduce yields, lower incomes and affect national food supplies and global commodity markets.

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24 Dec 2025

Hub cells in the brain keep the body clock on time

Researchers used a new computational method called MITE to map how cells in the suprachiasmatic nucleus (SCN) talk to each other. They found a small group of hub cells that are essential for network synchrony and for the body clock.

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24 Dec 2025

Gene in mice reduces background activity and improves focus

Researchers found a gene in mice that lowers background brain activity and improves focus. The work, led at Rockefeller University, points to a possible path for therapies that calm brain circuits.

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24 Dec 2025

Light-powered material cleans PFAS from water

Scientists created a new, metal-free material that uses light to break down many water pollutants, including PFAS. The hybrid surface combines two lightweight materials and worked well in flowing-water tests similar to treatment plants.

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24 Dec 2025

Scientists find new species faster than before

A study in Science Advances finds that scientists are discovering new species faster now, with more than 16,000 new species per year recorded 2015–2020. Better genetic tools should reveal even more, aiding conservation.

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24 Dec 2025

Microbes colonize new lava at an Iceland volcano

Scientists sampled fresh lava at the Fagradalsfjall volcano after eruptions between 2021 and 2023. They tracked how microbes arrived, how diversity changed after the first winter, and where the microbes likely came from.

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24 Dec 2025

Growth of concierge and direct primary care in the US

A study finds concierge and direct primary care practices grew quickly in the United States between 2018 and 2023. The change may affect who can access routine care and where clinicians choose to work.

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24 Dec 2025

How mangroves survive saltwater

Scientists studied mangrove trees to learn why some plants tolerate repeated saltwater flooding. They found small cells and thicker cell walls help mangroves stay strong in salty, waterlogged conditions and suggest this could help make crops more salt-tolerant.

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23 Dec 2025

Mental health conditions raise risk of injury

A large study in Nature Mental Health found people with mental health conditions have higher risks of self-harm, assault and unintentional injuries. The research used population records and had US federal funding and calls for better prevention.

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23 Dec 2025

Lower mGlu5 receptor found across autistic adult brains

A study in The American Journal of Psychiatry found lower availability of a glutamate receptor called mGlu5 across the brains of autistic adults. Researchers used PET, MRI and EEG and say the result could affect future diagnosis and treatment.

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23 Dec 2025

Africa needs better One Health surveillance

Experts say Africa must join human, animal and environmental surveillance to detect outbreaks earlier. A study led by CABI found that poor information flow between sectors, not lack of data, is a main obstacle.

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