The city of Leeds is located in north-central Alabama largely in Jefferson County; in recent years, it has expanded into both Shelby and St. Clair counties. A suburb of Birmingham in the Cahaba Valley, the city has a mayor/council form of government and was incorporated in 1887.
How long is a guinea pig pregnancy? The guinea pig pregnancy duration is long-approximately 59- 72 days (the average is 65 days) - the duration decreases with litter size (i.e. the smaller the litter, the longer the pregnancy).The mean length of pregnancy for a litter of 1 guinea pig is 70 days; for a litter of 6 guinea pigs its 67 days.First litters tend to be smaller than subsequent litters.ow long is a guinea pig pregnancy? The guinea pig pregnancy duration is long-approximately 59- 72 days (the average is 65 days) - the duration decreases with litter size (i.e. the smaller the litter, the longer the pregnancy).
Gestation takes longer in some mammals than in others. In rodents, such as hamsters, it takes just two to three weeks. Larger mammals produce fewer offspring, which usually take much longer to gestate. Elephants take the longest time of allâ20 months.estation takes longer in some mammals than in others. In rodents, such as hamsters, it takes just two to three weeks. Larger mammals produce fewer offspring, which usually take much longer to gestate. Elephants take the longest time of allâ20 months.