Volume 560 Issue 7718


The spectre of smallpox lingers p.281

The last known person to die from the virus was infected 40 years ago. Yet the disease remains a worry, and precautions should continue.

doi: 10.1038/d41586-018-05936-x


News Features

News & Views

Enzymes team up with light-activated catalysts p.310

Catalysts working in pairs can promote more-effective reactions than can the same catalysts used sequentially. The coupling of an enzyme with a light-activated catalyst offers great potential for organic synthesis.

doi: 10.1038/d41586-018-05933-0

Birds perceive colours in categories p.311

Humans perceive colours in categories such as red, even though we can discern red hues including ruby and crimson. It emerges that birds also categorize colours and this affects their colour-discrimination ability.

doi: 10.1038/d41586-018-05811-9

Profile of an unknown airway cell p.313

RNA sequencing of single cells in the mammalian trachea reveals a previously unknown airway cell that expresses genes involved in fluid and solute balance, and that might play a part in cystic fibrosis.

doi: 10.1038/d41586-018-05813-7

Special relativity validated by neutrinos p.316

Neutrinos are tiny, ghost-like particles that habitually change identity. A measurement of the rate of change in high-energy neutrinos racing through Earth provides a record-breaking test of Einstein’s special theory of relativity.

doi: 10.1038/d41586-018-05931-2



Ferroelectric switching of a two-dimensional metal p.336

Two- and three-layer WTe2 exhibits spontaneous out-of-plane electric polarization that can be switched electrically at room temperature and is sufficiently robust for use in applications with other two-dimensional materials.

doi: 10.1038/s41586-018-0336-3

Marine heatwaves under global warming p.360

Satellite observations and Earth system model simulations reveal that marine heatwaves have increased in recent decades and will increase further in terms of frequency, intensity, duration and spatial extent.

doi: 10.1038/s41586-018-0383-9

Categorical perception of colour signals in a songbird p.365

Female zebra finches exhibited categorical perception of colour signals, as they categorized colour stimuli that varied along a continuous scale and showed increased discrimination between colours from opposite sides of the category boundary compared to equally different colours from within a category.

doi: 10.1038/s41586-018-0377-7