Volume 609 Issue 7929



News Features

News & Views

Fossils reveal the deep roots of jawed vertebrates p.897

Scarce evidence indicates that key evolutionary steps for jawed vertebrates occurred during or before the Silurian period, 444 million to 419 million years ago. Fossil finds pull back the curtain on this interval.

doi: 10.1038/d41586-022-02973-5

Life brought to artificial cells p.900

Can artificial cells be built from basic components? Systems that have complex architectures and functions evocative of natural cells have been prepared by recycling the contents of bacterial cells in synthetic droplets.

doi: 10.1038/d41586-022-02231-8

The origins of medulloblastoma tumours in humans p.901

How certain subgroups of a childhood brain tumour called a medulloblastoma arise has been unclear. Evidence now implicates a cell type found only in developing human brains as the originator of these tumours.

doi: 10.1038/d41586-022-02951-x

Outer regions of galaxy clusters host radio megahaloes p.903

Observations reveal the presence of large volumes of ionized gas surrounding four galaxy clusters. The properties of these ‘megahaloes’ are distinct from those of similar haloes near the clusters, implying different formation mechanisms.

doi: 10.1038/d41586-022-02972-6

Lifting the veil on the oldest-known animals p.904

Gaps in the fossil record mean that the origins of ancient animals such as jellyfish and corals have remained a mystery. Now, a long-awaited fossil discovery reveals key features of this group during the early stages of its evolution.

doi: 10.1038/d41586-022-02893-4