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Migratory passerines cope well with mild weather variability

Moderate weather conditions are not stressful for fit birds. Photo by Julia Slezacek

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Super-fast breakdown or testosterone regulate male phenotypes in ruffs

© MPI for Biological Intelligence / Axel Griesch

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How fish reveal the link between stress and problem-solving

Using a social cichlid, we demonstrate a potential link between stress recovery and behavioural flexibility, with important implications for adaptation to changing environments.

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How do tropical birds cope with global warming?

A common potoo (Nyctibius griseus) remains lethargic throughout the hottest hours of the day

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Sweet sap, savory ants

Woodpeckers taste sweet, but wrynecks lost the ability to taste sugars. Photo: © Charles Thomas (Macaulay Library ML180000101)

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Flight efficiency in Northern Bald Ibises

Intermittent flight reduces the high costs of flying

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Physiological innovation and courtship behaviour

Specialized metabolic, respiratory and cardiovascular systems sustain the neuromuscular demands of physically demanding courtship

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Read our article about bird migration in Der Standard

A look into the physiology of spring migration

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