The study of phenotypic evolution should be an integrative endeavor that combines different
approaches and crosses disciplinary and phylogenetic boundaries to consider complex …

Mammals expend energy in many ways, including basic cellular maintenance and repair,
digestion, thermoregulation, locomotion, growth and reproduction. These processes can …

In this paper we show how animal personality could explain some of the large inter‐
individual variation in resting metabolic rate (MR) and explore methodological and …

Animal 'personality', defined as repeatable inter-individual differences in behaviour, is a
concept in biology that faces intense controversy. Critics argue that the field is riddled with …

Metabolic rate reflects an organism's capacity for growth, maintenance and reproduction,
and is likely to be a target of selection. Physiologists have long sought to understand the …

An absence of genetic variance in traits under selection is perhaps the oldest explanation for
a limit to evolutionary change, but has also been the most easily dismissed. We review a …

Tropical birds are relatively long-lived and produce few offspring, which develop slowly and
mature relatively late in life, the slow end of the life-history axis, whereas temperate birds lie …

Basal metabolic rate (BMR) is the rate of metabolism of a resting, postabsorptive, non-
reproductive, adult bird or mammal, measured during the inactive circadian phase at a …

The goal of this study was to characterize the genetic contribution to both forced and
voluntary exercise performance and to determine whether performance in these two …

Maximal metabolic rate (MMR) of mammals scales differently from basal metabolic rate
(BMR). This is first shown by scrutinizing data reported on exercise-induced V ̇ O 2max in …