Evolutionary reconstruction of the ecdysis pathway shows that its major elements are present in the majority of metazoans, providing evidence that they originated much earlier than currently assumed.

Extensive genetic diversity and novel genome structures in RNA viruses from arthropods shed important new light on the ancestry and evolutionary history of major classes of vertebrate and plant viruses.

The cryo-EM structure of the CG6765 BTB domain and solution scattering experiments revealed a unique three-dimer hexameric assembly for the arthropod Tramtrack group BTB domains.

X-ray imaging reveals well-preserved internal characters in mineralized arthropods from the Paleogene, urging the reexamination of previously neglected fossil collections.

Environmental DNA from highly standardized leaf sample time series suggests no localized species losses, but biotic turnover and homogenization, as main drivers of forest insect decline.

A new tick metabolic pathway that is connected to the survival of the Lyme disease spirochete was identified, which may lead to new ways to interfere with the spirochete life cycle.

A newly discovered cytoplasmic intermediate filament in water bears may help these animals to resist extreme environmental conditions.

The enzyme that allows some mites and insects to detoxify the hydrogen cyanide produced by plants has been identified.

New morphological information on the Cambrian artiopodan Acanthomeridion, including CT data, demonstrate that dorsal ecdysial sutures likely evolved multiple times within this group.