Reproduction in the Wolverine, Gulo gulo

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Abstract
The reproductive habits of the wolverine, largest of the terrestrial mustelids, have remained largely unknown. In the American literature there are scattered statements indicating that the young are born in the spring and that the number of young at birth is from two to four (Seton, 1927). Seton also states that mating takes place in March and the young are born in June. These statements, which are only partially correct, have come largely from woodsmen who have made no detailed study of the species. Mohr (1938, 1939) states that breeding occurred between July 17 and 22, 1915, in a pair of captive European wolverines kept at the Copenhagen Zoo and the female gave birth to a litter on February 17, 1916. The same female produced another litter on February 24, 1917 after breeding the previous summer. She suggests that the...