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New digital restorations indicate that the structure and function of the shoulder joint were highly variable among Early Cretaceous birds, with such key features as the configuration of the triosseal canal and the nature of scapula-coracoid articulation showing considerable diversity.

Starfish feed by everting their stomach out of their mouth over prey and, interestingly, this unusual feeding mechanism is inhibited by substances similar to hormones that regulate feeding in humans.

The water flea Daphnia moves to deeper waters to avoid predators when it detects a chemical produced by fish.

A cellular map of a deep-sea mussel gill unveils how distinct cell types collaborate to cultivate intracellular symbiotic bacteria, providing insights into host–symbiont interactions and environmental adaptation in bivalves.

Testing of fitness-related benefits in migratory population of European blackbirds offers confirming predictions of theoretical models on the evolution and maintenance of migration.

No discernible latitudinal diversity gradient in rocky intertidal α-diversity as local-scale physical and biological processes outweigh global-scale environmental gradients.

Ancient proteomes from tiny shell ornaments were successfully characterised for the first time, showing the unexpected use of mother-of-pearl from local riverine molluscs in both coastal and inland prehistoric sites.

A fish-derived bile salt was shown to act as interspecific infochemical, inducing the widespread predator avoidance behavior diel vertical migration at picomolar concentrations in freshwater zooplankton of the genus Daphnia.

A novel experiment shows that ocean acidification decreases freeze tolerance in blue mussels, which may limit their ability to redistribute poleward in response to climate warming.

Functional imaging (fMRI) across four mammalian species maps the brain areas engaging in burst-suppression activity during anesthesia, and uncovers differences between primates and rodents.