Nature, Published online: 16 October 2026; doi:10.1038/d41586-026-03341-3

Nature staff discuss a new ink that could be useful for medical tattooing — plus, an insight into why small dogs live longer than big ones.

Nature, Published online: 16 October 2026; doi:10.1038/d41586-026-03253-2

US PhD graduates who used artificial intelligence were more likely to work in industry.

Nature, Published online: 15 October 2026; doi:10.1038/d41586-026-03329-z

Governments have voted to abolish the leap second immediately and replace it with a leap hour.

Nature, Published online: 15 October 2026; doi:10.1038/d41586-026-03336-0

Ghostly white corals are fully restored in eight weeks by contact with a healthy counterpart. Plus, arXiv is capping submissions per researcher and four good news stories to brighten your day.

Nature, Published online: 15 October 2026; doi:10.1038/s41586-026-11263-3

Nearly half of reef-building corals face elevated relative risk of extinction

Nature, Published online: 14 October 2026; doi:10.1038/s41586-026-11242-8

Catalytic transfer of carbon atoms enables spirofusion of C–C σ-bonds

Nature, Published online: 14 October 2026; doi:10.1038/d41586-026-03202-z

Assimilating the latest technology into health systems is a key challenge facing the field.

Nature, Published online: 14 October 2026; doi:10.1038/s41586-026-11267-z

Author Correction: Wafer-scale epitaxy growth of high-mobility p-type boron carbon nitride

Nature, Published online: 14 October 2026; doi:10.1038/d41586-026-03307-5

Analysis suggests number of protected areas is hugely underestimated but biodiversity is still in peril — plus, a huge study looking at the health effects of brown fat.

Nature, Published online: 14 October 2026; doi:10.1038/d41586-026-03247-0

A tool called IdeaLens helps to judge whether concepts — rather than just writing — in scientific papers are AI-generated.

Nature, Published online: 14 October 2026; doi:10.1038/d41586-026-03223-8

China trains more AI talent than any other country. Nature spoke to analysts and scientists about how AI research there compares to the United States.

Nature, Published online: 14 October 2026; doi:10.1038/s41586-026-11239-3

Structural basis of ligand recognition and gating in mosquito IRs

Nature, Published online: 14 October 2026; doi:10.1038/d41586-026-03203-y

To harness the full value of wearable devices for monitoring and diagnosing medical conditions, protocols must be established.

Nature, Published online: 14 October 2026; doi:10.1038/s41586-026-11138-7

Machine-learning-enabled atomistic simulations, spectroscopy, electrochemical data and quantum-chemical calculations reveal previously unstudied multi-lithium-ion complexes without bound anions, improving understanding of lithium-ion-battery functionality at the atomic level.

Nature, Published online: 14 October 2026; doi:10.1038/s41586-026-11157-4

A globally representative sample of 25 countries and territories indicates that conservation areas cover 26.81% of the land, much closer to the 30% by 2030 target than officially reported.

Nature, Published online: 14 October 2026; doi:10.1038/s41586-026-11176-1

A tetravalent nanobody-based myeloid-selective IL-10 receptor agonist recapitulates IL-10’s potent suppression of monocytes, macrophages and dendritic cells while avoiding stimulation of T cells.

Nature, Published online: 14 October 2026; doi:10.1038/s41586-026-11112-3

Primary cultured haematopoietic stem and progenitor cells are used to analyse the molecular mechanisms of brain myeloid differentiation, and this platform enabled the identification of elongation factor ELP1 as an important regulator of this process.

Nature, Published online: 14 October 2026; doi:10.1038/s41586-026-11065-7

The mechanical properties of medium-entropy alloys at 20 K show a plateau in tensile yield strength and fracture toughness as a function of temperature, with no apparent ductile-to-brittle transition.

Nature, Published online: 14 October 2026; doi:10.1038/s41586-026-11171-6

R(+)2501 reverses capillary no-reflow by relaxing pericytes, restoring microvascular perfusion and improving survival in animal models of myocardial infarction and acute kidney injury.

Nature, Published online: 14 October 2026; doi:10.1038/s41586-026-11115-0

A year-long single-blind study shows that multiple satellites can accurately detect and quantify methane point-source emissions.