Heterosis in the common European Water Frog.
D000693:Anaerobiosis; D000818:Animals; D001001:Anura; D003433:Crosses, Genetic; D005260:Female; D006605:Hibernation; D006823:Hybrid Vigor; D006824:Hybridization, Genetic; D008297:Male; D008675:Metamorphosis, Biological; D011893:Rana esculenta / Q000235:genetics / Q000502:physiology; D011898:Ranidae / Q000235:genetics / Q000502:physiology*