**1.** Growth rates directly influence individual fitness and constrain the flow of energy within food webs. Determining what factors alter the energetic cost of growth is therefore fundamental to ecological and evolutionary models. **2.** Here, we used theory to derive predictions about how the cost of growth varies over ontogeny and with temperature...
The allocation of metabolic energy to growth fundamentally influences all levels of biological organisation. Here we use a first‐principles theoretical model to characterise the energetics of fish growth at distinct ontogenetic stages and in distinct thermal regimes...
Linking biological levels of organisation through energetics.