is Mythos the start of the restricted-AI era?
In April, the artificial-intelligence firm Anthropic announced it had made an AI model too dangerous to be released to the
Stress impairs your brain’s ability to link memories — dampening insight
Stress has widespread effects on the brain.Credit: K H Fung/Science Photo Library Acute stress makes it difficult to link memories
Becoming a mother leaves long-lasting molecular memories
Nature, Published online: 20 May 2026; doi:10.1038/d41586-026-01327-9 In mice, motherhood induces transcriptional changes in the brain that endure beyond short-term
US biology lab locked down for more than a week amid smuggling inquiry
A lab at the University of Indiana Bloomington is under scrutiny from the US Department of Agriculture.Credit: Michael Hickey/Getty Biologists
Immune cells in the blood drive cognitive ageing — blocking them improves memory
Age-related memory decline could be caused by ageing immune cells.Credit: JasonDoiy/Getty A type of immune cell circulating in the blood
Hantavirus outbreak exposes uncertainty about how disease spreads
Passengers disembarked from the MV Hondius at the Canary Islands wearing personal protective equipment.Credit: Chris McGrath/Getty Close to 150 passengers
How a passion for baking fermented a fresh career move
Chantle Edillor 00:08 I believe that the creativity, you know, the uniqueness of the perspectives that I had, you know,
Quantum ‘thermometer’ takes temperatures inside living cancer cells
A cancer cell (nucleus in blue, cellular ‘skeleton’ in green). Scientists have devised nanosensors that can measure the temperature inside
This organoid can menstruate — and shows how tissue can repair itself
Gynaecological disorders such as endometriosis could be studied using endometrium organoids.Credit: fizkes/Shutterstock Researchers have developed organoids that can regenerate like
Intrinsic polar vortex crystals in A-site layer-ordered perovskites
Fert, A., Reyren, N. & Cros, V. Magnetic skyrmions: advances in physics and potential applications. Nat. Rev. Mater. 2, 17031