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In this issue 15 papers · 5 free

01 Nature Climate Change Climate warming drives thermal shocks and accelerated freshwater habitat fragmentation Free
02 PLOS Medicine Trends of stillbirth, early neonatal and perinatal mortality rates and sociodemographic differentials of perinatal mortality rates in 17 low- and middle-income countries: A modeling study Free
03 Nature Human Behaviour Quantifying the prevalence and impact of overreaching causal claims in social science Free
04 Nature Communications Transposon end recognition and excision mechanisms of type I-F CRISPR-associated transposases Free
05 Nature Communications Time series learning in a many-body Rydberg system with emergent collective amplification Free
06 Proceedings of the National Academy of Sciences Loss of epitranscriptomic mitochondrial RNA surveillance drives epithelial type I interferon and inflammation in autoimmunity Subscribers
07 Proceedings of the National Academy of Sciences Pelagic food web realignment supports resilient larvae of Southern Bluefin Tuna in a warming ocean Subscribers
08 Proceedings of the National Academy of Sciences Shifting gears to power human walking Subscribers
09 Monthly Notices of the Royal Astronomical Society Onset and termination of solar grand minima: predictions of a stochastic Babcock-Leighton dynamo Subscribers
10 Physical Review X Real-Space Visualization of the Intrinsic Aging in n -type Mg 3 ( Sb , Bi ) 2 Thermoelectrics Subscribers
11 Science Advances Reconstruction and attribution of Late-Pleistocene changes in the Earth’s energy imbalance Subscribers
12 Nature Communications Combinatorial group testing for efficient scaling across biological applications Subscribers
13 eLife Optimising the tilt increment for in situ cryo-electron tomography Subscribers
14 Science Advances Structural basis for target discrimination and activation by Cas13d Subscribers
15 Science Advances A multi-functional oral small molecule targeting energy and lipid metabolism to treat obesity and related metabolic disorders Subscribers

The papers Read free

Nature Climate Change·24 August 2026

Hong Wang, Junguo Liu et al.

About 63% of river fish will face more lasting heat barriers under high pollution levels.

Warming rivers and lakes are not just getting hotter slowly. They are creating sudden temperature spikes that can trap fish in shrinking pockets of livable water. A study of 9,809 freshwater fish species found that many will face worsening heat barriers that cut off populations from each other, raising the risk of local extinctions.

The number 63%

the share of river fish species expected to face more persistent heat barriers under a high-emissions scenario

Model based projection across 9,809 species, not direct field data.

Integrity screen: passed (3 checks) Checked 25 August 2026. Hong Wang, Junguo Liu et al., Climate warming drives thermal shocks and accelerated freshwater habitat fragmentation Read the source

PLOS Medicine·24 August 2026

Mohamed M. Ali, Luca Cegolon et al.

Stillbirth and newborn death rates fell over time, but poorer families still face higher risks.

Deaths of babies just before or right after birth have dropped over time in many poorer countries. Researchers built a better math tool to fix common survey mistakes, like parents forgetting a loss or mixing up a stillbirth with an early death. Even with this fix, poor, less educated, and rural families still face higher risks. Progress differs a lot from country to country.

The number 1,019,253 pregnancies

The number of pregnancies studied across 93 surveys in 17 lower income countries.

17 countries studied, survey based, gaps between rich and poor remain.

Integrity screen: passed (3 checks) Checked 25 August 2026. Mohamed M. Ali, Luca Cegolon et al., Trends of stillbirth, early neonatal and perinatal mortality rates and sociodemographic differentials of perinatal mortality rates in 17 low- and middle-income countries: A modeling study Read the source

Nature Human Behaviour·24 August 2026

Calvin Isch, Timothy Dörr et al.

Cause-and-effect wording in social science studies tripled from 2000 to 2024, even without proof of causation.

Many social science studies only show that two things happen at the same time. That does not prove one thing causes the other. A check of 194,631 studies found that cause-sounding words tripled between 2000 and 2024, going from 20% to 60% of articles. In tests, AI tools that summarized these studies often made the problem worse, dropping careful wording and adding cause-and-effect claims that were not in the original.

The number 20% to 60%

Share of studies using cause-and-effect language in titles or summaries, from 2000 to 2024.

194,631 studies checked; AI summaries often overstated cause and effect further.

Integrity screen: passed (3 checks) Checked 25 August 2026. Calvin Isch, Timothy Dörr et al., Quantifying the prevalence and impact of overreaching causal claims in social science Read the source

Nature Communications·24 August 2026

Mateusz Walter, Giada Finocchio et al.

A bacterial DNA-cutting tool's exact shape reveals how it grabs and inserts new DNA.

A bacterial tool that cuts and pastes DNA has been mapped in fine detail. Scientists took clear 3D pictures of the tool while it grabbed a piece of DNA and cut it out. They also tested changed versions of the tool's parts. Some changes made it work better, which could help engineers design improved gene editing tools.

What it could change Detailed 3D pictures show exactly how a bacterial tool cuts and inserts DNA at chosen spots.

The images capture the tool's shape while it recognizes, cuts, and prepares to insert DNA.

Lab and structural study only, no human testing done yet.

Integrity screen: passed (3 checks) Checked 25 August 2026. Mateusz Walter, Giada Finocchio et al., Transposon end recognition and excision mechanisms of type I-F CRISPR-associated transposases Read the source

Nature Communications·24 August 2026

Zongkai Liu, Qiming Ren et al.

In a lab, atoms near a tipping point predicted future data values more accurately.

A cloud of specially excited atoms can act like a tiny computer. It learns patterns in data and predicts what comes next. Scientists tested this near a special tipping point where atoms react together as a group. Near this tipping point, the cloud got better at predicting future values in a data stream.

What it could change A cloud of atoms predicted future data better near a special tipping point.

Shows atoms near a critical point improve at forecasting patterns like the Lorenz system and temperature data.

Lab test only, with atoms, not real forecasting systems.

Integrity screen: passed (3 checks) Checked 25 August 2026. Zongkai Liu, Qiming Ren et al., Time series learning in a many-body Rydberg system with emergent collective amplification Read the source

10 more papers are in the full issue.

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Proceedings of the National Academy of Sciences·24 August 2026

Alejandro Arco-Hierves, Konstantina Pamboukas et al.