Many birds and mammals drastically reduce their energy expenditure during times of cold
exposure, food shortage, or drought, by temporarily abandoning euthermia, ie the …

Many environmental conditions can constrain the ability of animals to obtain sufficient food
energy, or transform that food energy into useful chemical forms. To survive extended …

Mammalian heterotherms, species that employ short or long periods of torpor, are found in
many different climatic regions. Although the underlying physiological mechanisms of …

Hibernation evolved in some small mammals that live in cold environments, presumably to
conserve energy when food supplies are low. Throughout the winter, hibernators cycle …

Global climate change is expected to have strong effects on the world's flora and fauna. As a
result, there has been a recent increase in the number of meta-analyses and mechanistic …

Living nonhuman primates generally inhabit tropical forests, and torpor is regarded as a
strategy employed by cold‐adapted organisms. Yet, some primates employ daily torpor or …

Heterothermy is an energy‐saving strategy usually employed in response to environmental
bottlenecks, which is common in almost all mammalian orders. Within the order primates …

Torpor, the controlled depression of virtually all bodily function during scarce periods, was
verified in primates under free-ranging conditions less than two decades ago. The large …

Feast-fast cycles allow animals to live in seasonal environments by promoting fat storage
when food is plentiful and lipolysis when food is scarce. Fat-storing hibernators have …

Behavioral and physiological adaptations are common and successful strategies used by
small endothermic species to adjust to unfavorable seasons. Physiological adaptations …