title: Laboratory observations on the fox (Vulpes vulpes crucigera) in Dyfed during the winters of 1974/75 and 1975/76.
mesh_terms: D000818:Animals; D001835:Body Weight; D005260:Female; D005589:Foxes / Q000502:physiology*; D011247:Pregnancy; D012621:Seasons; D012737:Sex Factors; D006113:United Kingdom