Biparental care of offspring occurs in diverse mammalian genera and is particularly common
among species with socially monogamous mating systems. Despite numerous well …

Costs of reproduction can be divided in mandatory costs coming from physiological,
metabolic, and anatomical changes required to sustain reproduction itself, and in investment …

For vertebrates, body mass underlies much of the variation in metabolism, but among
animals of the same body mass, metabolism varies six-fold. Understanding how natural …

During migration, birds substantially increase their metabolic rate and burn fats as fuel and
yet somehow avoid succumbing to overwhelming oxidative damage. The physiological …

Heterotherms vary their use of torpor and choice of refugia to deal with energetic stresses
such as reproductive activity and extreme weather. We hypothesized that a temperate …

Endogenous circannual clocks are found in many long-lived organisms, but are best studied
in mammal and bird species. Circannual clocks are synchronized with the environment by …

Oxidative damage is predicted to be a mediator of trade-offs between current reproduction
and future reproduction or survival, but most studies fail to support such predictions. We …

Shifts in reproductive timing are among the most commonly documented responses of
organisms to global climate change. However, our knowledge of these responses is biased …

The evolution of immunological agents in milk is intertwined with the general aspects of the
evolution of the mammary gland. In that respect, mammalian precursors emerged from basal …

Life history parameters appear to be traded off against each other, but the physiological
mechanisms involved remain unclear. One hypothesis is that potentially energetically costly …