Скачать или смотреть Which animal has the longest gestation period?

The animal with the longest gestation period is actually a matter of some debate. According to most sources, the African Elephant holds the record for the longest gestation period among mammals, with pregnancies lasting around 22 months (645 days). This extended period allows the calf to develop fully and be born with relatively good cognitive skills and physical strength.

However, some research suggests that the Bowhead Whale might potentially have an even longer gestation period, with progesterone levels indicating a possible pregnancy duration of up to 2 years (23.5 months). Nevertheless, more research is needed to confirm this finding.

Other animals with remarkably long gestation periods include ¹ ² ³:
*Asian Elephant*: 18-22 months (617 days)
*Sperm Whale*: 14-16 months (480-590 days)
*Walrus*: 15-16 months (450-590 days)
*Black Rhinoceros*: 15-16 months (450 days)
*Giraffe*: 14-15 months (420-460 days)
*Alpine Salamander*: 2-3 years (exceptionally long for an amphibian)

These extended gestation periods often result in well-developed offspring that are better equipped to survive in their environments.