What are the causes of natural selection? Over 40 years ago, Van Valen proposed the Red
Queen hypothesis, which emphasized the primacy of biotic conflict over abiotic forces in …

The recognition that animals sense the world in a different way than we do has unlocked
important lines of research in ecology and evolutionary biology. In practice, the subjective …

Throughout their lives animals must complete many tasks, including finding food, avoiding
predators, attracting mates, and navigating through a complex and dynamic environment …

Balancing selection describes any form of natural selection, which results in the persistence
of multiple variants of a trait at intermediate frequencies within populations. By offering up a …

The interactions between avian obligate interspecific brood parasites and their hosts provide
tractable systems for studying coevolutionary processes in nature. This review highlights …

Brood (social) parasites and their hosts exhibit a wide range of adaptations and counter-
adaptations as part of their ongoing coevolutionary arms races. Obligate avian brood …

Snake venom evolution is typically considered to be predominantly driven by diet-related
selection pressures. Most evidence for this is based on lethality to prey and non-prey …

Accurate recognition of salient cues is critical for adaptive responses, but the underlying
sensory and cognitive processes are often poorly understood. For example, hosts of avian …

The relationships between avian brood parasites and their hosts are widely recognised as
model systems for studying coevolution. However, while most brood parasites are known to …

Most mimicry systems involve imperfect mimicry, whereas perfect and high-fidelity mimicry
are rare. When the fidelity of mimicry is high, mimics might be expected to have the upper …