India, Sept. 16 -- Animal pregnancy lengths vary dramatically across species. While some animals give birth within a matter of weeks, others remain pregnant for many months. Gestation can vary by several days depending on the breed and individual circumstances. Twins and other multiple births can also be associated with differences in gestation length compared with a single lamb. But what about an animal with a gestation period of 147 days? The answer may be more surprising than you expect.

Which Animal Gives Birth After 147 Days?

The pig is commonly associated with a gestation period of around 114 days, while several other mammals have much longer pregnancies. A gestation period of 147 days is associated with the sheep, although the ex...