Protein nutritional requirements decrease predictively with mass throughout ontogeny across the animal kingdom.

The widespread occurrence of metabolically active streptomycetes in Odontotaenius disjunctus beetle frass may insulate their galleries against pathogenic fungal invasion through the production of diverse antimicrobial specialized metabolites.

Effects of dietary lipids on organismal function and reproductive fitness are persistent and may depend on lipid identity, cause the evolution of lipid-based diet choice, alter food webs, change species responses to environmental change, and affect human nutrition.

Colony satiation level determines the unloading rate of laden foragers, which, in turn, rely on their own food load to adjust their foraging effort.

Phototaxis and courtship behavioral preferences reflect strong correlation with differences in olfactory and visual nervous system investment across five monophyletic Drosophila species, and could help explain their speciation events.

Hundreds of loci underlying ecological adaptation to different environmental conditions show striking differences in allele frequencies between ecotypes of Atlantic herring.

In a rural, low-income setting in Bangladesh, early-life telomere length was associated with concurrent growth.

The growth of wild Drosophila larvae on fruits is promoted by a yeast releasing essential nutrients extracellularly or by a stable association with a nutrient-providing bacterium established by microbe–microbe interactions.

Cytokinin-dependent manipulation of plant metabolism is a strategy employed not only by gallers and leaf-miners but also by a free-living insect, Tupiocoris notatus, which directly transfers cytokinins at feeding sites to manipulate its host plant.

A novel automated behavior analysis method for Hydra identifies pre-defined and new behavior types, and reveals a stable behavior repertoire.