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Organs don't just grow in early life; they can change in response to physiological or environmental challenges in adulthood. Researchers have now identified an active role for the intestinal muscles in remodeling the gut after reproduction.

The EU has introduced new rules targeting packaging waste and "forever chemicals." Although the changes will be phased in slowly, some small sellers have already paused shipments due to the additional red tape.

One reader explains how the moon’s drift will lead to longer (and warmer) days.

Trump claims pro-Israel lobbying no longer wields the power it had decades ago, reflecting changes in US politics.

Organisers say countries engaged in armed conflict will be automatically disqualified from hosting.

Managing director says guidelines will ensure no individual will ‘be the subject of comedy that is violent in its description in our programming’Get our breaking news email, free app or daily news podcastA pledge by the ABC managing director, Hugh Marks, to change editorial guide

River and canal ships generate roughly a quarter of the world's shipping carbon dioxide emissions, according to new research published in Nature Climate Change. Destaque: 1%.

Advances in genome sequencing are giving more families access to prenatal genetic testing and new information about an unborn baby's health, including whether genetic changes may be linked to a neurodevelopmental condition.

Encephalitis is a serious condition in which an infection or autoimmune response triggers inflammation of the brain. The resulting swelling can disrupt normal brain function, causing neurological changes such as confusion, altered mental status and seizures. Researchers from The

Iran says Hormuz stays closed until US meets its demands and changes its 'behaviour' as global energy prices rise.

After a period of underachievement and upheaval for the Blues, the arrival of Xabi Alonso could signal a change in fortunesGuardian writers’ predicted position: 3rd (NB: this is not necessarily Billy Munday’s prediction but the average of our writers’ tips)Last season’s position:

Google Pixel 11 Series starts $100 costlier than the last year, but offers 256GB base storage. Destaque: $100.