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  1. Plasma prolactin during the breeding season in adult and immature macaroni (Eudyptes chrysolophus) and gentoo (Pygoscelis papua) penguins

    Plasma prolactin levels were measured in free-living breeding adult and immature (prebreeding) macaroni (Eudyptes chrysolophus) and gentoo (Pygoscelis papua) penguins at Bird Island, South Georgia (54°S, 38°W). Macaroni and gentoo […]

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