1: Meet the tiny shrew with a gestation period of just 21 days!

2: The American opossum carries its young for a mere 12-13 days.

3: Surprisingly, the hamster gestates for only 15-20 days.

4: Experience nature's efficiency with the short gestation of the mouse at 19-21 days.

5: The mouse lemurs have one of the shortest pregnancies at just 60 days.

6: The Brazilian short-tailed opossum gives birth after only 13 days.

7: Witness the short gestation of the small-spotted catshark at just 5-6 months.

8: The eastern American mole boasts a gestation period of 42 days.

9: From shrews to sharks, nature's efficiency in gestation times is truly remarkable.

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