it can take as long as it wants but if it is ice then snow on top of it it may take months
Well it really depends on the habitate. The usual length of a wild dogs life is approximatly 14-16 years, but there is deffinatly more threats in the wild then our domesticated dogs, so it is...
About 2 years.
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usually 25 years, though there have even been some recorded to live for 50 years or more