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1. The mouse holds the record for the fastest gestation period among mammals, at just 19 days.
2. The hamster follows closely behind, with a gestation period of 16 days.
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3. The gerbil is another small mammal with a quick gestation period, at only 25 days.
4. The rat also has a short gestation period of around 21 days.
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5. Among larger mammals, the guinea pig has a fast gestation period of 59 to 72 days.
6. The rabbit boasts a gestation period of just 31 days.
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7. Dogs have a relatively short gestation period, ranging from 58 to 68 days.
8. Cats also have a quick gestation period, averaging around 63 days.
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9. The horse has a gestation period of 11 months, making it one of the shortest among large mammals.
10. Cows typically have a gestation period of around 280 days.
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11. Elephants have the longest gestation period of any mammal, lasting up to 22 months.
12. Giraffes have a gestation period of around 15 months.
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13. The slow loris has one of the shortest gestation periods among primates, at just 193 days.
14. Humans have a gestation period of around 280 days on average.
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15. The armadillo holds the record for the fastest gestation period among mammals, at just 60 days.
16. The opossum follows closely behind, with a gestation period of 12-13 days.
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17. The squirrel is another small mammal with a quick gestation period, at only 44 days.
18. The chipmunk also has a short gestation period of around 31 days.