Animal behaviour can lead to varying levels of risk, and an individual's physical condition
can alter the potential costs and benefits of undertaking risky behaviours. How risk‐taking …

Many people feel emotional when hungry—or “hangry”—yet little research explores the
psychological mechanisms underlying such states. Guided by psychological constructionist …

Leptin and ghrelin are metabolic hormones central to energy regulation in the body.
Theories of allostasis suggest that metabolism could matter for more than just food intake …

Behavioral responses of tadpoles of Duttaphrynus melanostictus (Anura: Bufonidae) to cues
of starved and fed dragonfly larvae. Tadpoles of Duttaphrynus melanostictus use …

In this study, we examined cannibalistic behavior, growth, metamorphosis, and survival in
larval and post‐metamorph endangered yellow spotted mountain newts Neurergus …

Predator-prey interactions are vital for organismal survival. They shape anti-predator
mechanisms and often depend on sensory abilities. Tadpoles use chemical cues, such as …

Intraspecific aggressiveness can be affected by multiple environmental pressures. In several
cases, aggressiveness can grade into full-scale cannibalism, particularly when resources …

Early detection of predators is fundamental for the survival of the prey. Predator detection
can occur by perception of the chemical substances released by predators or injured …

As an evolutionary force, predation increases predator fitness, whereas prey future fitness is
reduced to zero. Mesopredators are subjected to pressures as both predator and prey …

Predation risk affects foraging behavior and, particularly, the amount of time devoted to the
search for food. When exposed to predation risk, food deprived animals should be risk prone …