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Volume 530 Issue 7590

Editorials

Green-sky thinking p.253

Environmental agencies must go much further in regulating aircraft emissions if they want to make a real difference.

doi: 10.1038/530253a

Chow down p.254

Scientists should pay more heed to the varying effects of diet and environment on animal work.

doi: 10.1038/530254a

News

News Features

What sparked the Cambrian explosion? p.268

An evolutionary burst 540 million years ago filled the seas with an astonishing diversity of animals. The trigger behind that revolution is finally coming into focus.

doi: 10.1038/530268a

News & Views

Photons paired with phonons p.284

The force exerted by light on an object has been used to pair photons with quantum units of mechanical vibration. This paves the way for mechanical oscillators to act as interfaces between photons and other quantum systems. See Letter p.313

doi: 10.1038/530284a

Hand of the gods in human civilization p.285

Cross-cultural experiments find that belief in moralistic, knowledgeable and punishing gods promotes cooperation with strangers, supporting a role for religion in the expansion of human societies. See Letter p.327

doi: 10.1038/nature16879

Ice streams waned as ice sheets shrank p.287

It emerges that ice discharge from a major ice sheet did not increase rapidly at the end of the most recent ice age. The finding points to steady, not catastrophic, ice-sheet loss and sea-level rise on millennial timescales. See Letter p.322

doi: 10.1038/530287a

Form follows function for mitochondria p.288

The fission of organelles called mitochondria has now been linked to the stress-sensor protein AMPK. When activated by stress, this protein phosphorylates the mitochondrial receptor protein MFF, which recruits the fission machinery.

doi: 10.1038/530288a

Females have a lot of guts p.289

The discovery of sex-biased proliferation in the intestinal stem cells of fruit-fly midguts reveals that the organ's size is determined by a previously undefined, sex-specific molecular pathway. See Letter p.344

doi: 10.1038/530289a

From sea to sea p.290

The genome sequence of the marine flowering plant eelgrass (Zostera marina) sheds light on how marine algae evolved into land plants before moving back to the sea. See Letter p.331

doi: 10.1038/nature16869

Articles

The peptidergic control circuit for sighing p.293

The peptidergic neuronal circuit controlling sigh generation has been identified as ~200 Nmb- or Grp-expressing neurons in the RTN/pFRG breathing control centre of the medulla that project to ~200 receptor-expressing neurons in the respiratory rhythm generator, the preBötzinger Complex.

doi: 10.1038/nature16964

Letters