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Early amphibian breeders coping with acidification

Eggs of the Western spadefoot toad reached 100% mortality in all 29 clutches deposited at a pH below 5.0 in a temporary pond of the Doñana National Park (SW Spain) throughout the wet season of...

Tropical bat as mammalian model for skin carotenoid metabolism

Animals cannot synthesize carotenoid pigments de novo, and must consume them in their diet. Most mammals, including humans, are indiscriminate accumulators of carotenoids but inefficiently...

Ancient intercontinental dispersals of grey wolves according to mitochondrial genomes

In this study the previously proposed hypothesis that extant North American wolves originate from multiple waves of colonization from Asia is tested, along with the hypothesis that land connections...