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Spouses tend to share the same psychiatric disorders

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An orange pea crab walking along the surface of bright orange and blue coral

Credit: Andrey Shpatak/Ocean Photographer of the Year

Ocean photographer Andrey Shpatak snapped this colourful pea crab (Pinnotheres pisum) in Rudnaya Bay, just off the southeastern coast of Russia. His timing was a stroke of luck, he says. Pea crabs live most of their lives hidden inside the shells of mussels. “I can only assume that this pea crab was looking for a home when I managed to photograph it,” says Shpatak. The lucky shot was a finalist in Oceanographic magazine’s 2025 Wildlife Photographer of the Year competition.

See more of the month’s sharpest science shots, selected by Nature’s photo team.

Nature | Leisurely scroll

People with a psychiatric disorder are more likely to marry someone who has the same condition than to partner with someone who doesn’t. Using data from more than 14.8 million people, researchers found that when one partner was diagnosed with one of nine conditions after marriage, the other was significantly more likely to be diagnosed with the same condition. “The pattern holds across countries, across cultures, and, of course, generations,” says population-and-genetics researcher Chun Cheih Fan, who co-authored the study.

Nature | 4 min read

Reference: Nature Human Behaviour paper

Researchers have identified more than 1,000 potentially problematic open-access journals using an artificial intelligence (AI) tool designed to screen titles for signs of dubious publishing practices. None of the journals it flagged has previously been on any kind of watchlist, and some titles are owned by large, reputable publishers. The tool isn’t designed to replace human evaluations of the integrity of journals and papers, says computer scientist Daniel Acuña, who designed it. But it could be used to speed up such assessments.

Nature | 5 min read

Reference: Science Advances paper

Trump’s assault on US science

US science agencies have begun releasing their plans to comply with US President Donald Trump’s call for ‘gold-standard science’. The plans mainly detail efforts towards achieving widely supported science goals, such as data accessibility and reproducibility. But researchers and science-policy specialists tell Nature that elements of the plans leave the door open to political interference in science. The US Food and Drug Administration, for instance, would put a political appointee — rather than a civil servant, often with scientific expertise — in charge of implementing the new policies. Critics say the Trump administration’s actions are not a genuine effort at improving science. “The overall strategy is attacking scientific findings in order to diminish the public’s trust,” says epidemiologist David Michaels.

Nature | 6 min read

Nine former directors of the US Centers for Disease Control and Prevention (CDC), dating back to 1977 and serving under every Republican and Democratic president, are raising the alarm about the impact of health secretary Robert F. Kennedy Jr. They argue that, by firing thousands of federal health workers and weakening crucial public health programmes, Kennedy is endangering everyone — notably people in rural communities, those with disabilities, families with low incomes, and children. “This is unacceptable, and it should alarm every American, regardless of political leanings,” they write.

The Washington Post | 5 min read

From emergency food to bed nets, motorbikes and defibrillators, the sudden and chaotic end of US funding for global-health projects has seen enormous amounts of vital supplies destroyed, thrown away, left to rust or sold for a fraction of their worth, reports The Atlantic. Sometimes, even when a new home can be found for a precious piece of equipment, giving it away might be against US government rules. It’s also not straightforward: Shumet Amdemichael, the director of the nonprofit Mercy Corps’ Nigeria programs, says they’d like to give their generators to local hospitals — but the machines will be useless without money for fuel.

The Atlantic | 9 min read

Features & opinion

In Flashes of Brilliance, writer and photo editor Anika Burgess captures the dual nature of scientific images: a tool for discovery and a medium for communication. As a guide through the history of scientific photography, Burgess celebrates the ability of an image to wordlessly crystallize a complex idea, while acknowledging their potential to mislead if manipulated. The book “challenges us to be more thoughtful, not just in making images but in seeing them”, says science photographer Felice Frankel in her review.

Nature | 7 min read

A new study in Communications Psychology finds that extolling the novelty or importance of a paper in its abstract increases online attention and citations. But the journal’s editors don’t allow such promotional language in its own pages. In an editorial, the journal explains why it’s “so mean” when it comes to banning hype. “Novelty claims lead to unproductive disagreement,” it argues, and it’s unclear what makes a ‘first’ anyway. Hype exacerbates the gender gap: if women use hype, their work doesn’t benefit as much as men’s. In any case, “it is not the authors but the expert readers who are best placed to judge the work, who may feel ‘amazed’ and who can most credibly assign the label of ‘incredibly valuable contribution’”.

Communications Psychology | 4 min read

Reference: Communications Psychology paper

Where I work

Carmen García-Chávez sitting at a laptop with four ranchers standing looking at the computer's screen.

Carmen García-Chávez is a biologist and co-founder of the Tonkawa Foundation in Nuevo Casas Grandes, Mexico.Credit: Mahé Elipe for Nature

Biologist Carmen García-Chávez is the co-founder of a charity that works to recover the population of the Mexican wolf (Canis lupus baileyi), which had been hunted to near-extinction by the 1980s. Her work involves outreach to local landowners and communities to discuss benefits that can come from reintroducing the species. “I’ve watched children explain to their parents why ‘the wolf is not the bad guy’, but a valuable animal that helps maintain the balance of the ecosystem,” she says. (Nature | 3 min read)

QUOTE OF THE DAY

Maina Vakafua Talia, the climate and environment minister of Tuvalu — which has seen one-third of its citizens seek ‘climate refuge’ in Australia — welcomes an advisory opinion by the International Court of Justice that says nations can face legal consequences if they don’t act on the climate crisis. (Nature | 5 min read)

On Friday, Leif Penguinson was exploring a lithified sand dune on Cat Island in the Bahamas. Did you find the penguin? When you’re ready, here’s the answer.

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Flora Graham, senior editor, Nature Briefing

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