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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