Szukana fraza: [Opis = "In the opinion of many authors determination of the sex of moles \(Talpa europaea L.\) by means of their external features, except during the reproduction period, is either impossible \(Parkes, 1956\) or very difficult \(Ogniev, 1928, Dieperma, 1951, Ablielienciev, 1956\), especially in the case of young individuals \(Godet, 1951\)."]