Facts about Whale Pregnancy
- 08
Beluga whale calves gestate for approximately 14 months and are born at roughly 5 feet long, requiring extended maternal care in cold Arctic waters.
- 07
Fin whale pregnancies last approximately 11 months, the shortest gestation period among baleen whales, allowing them to give birth during nutrient-rich feeding seasons.
- 06
Bowhead whales can sustain pregnancies lasting approximately 14 months while surviving in Arctic waters with temperatures below freezing, requiring specialized physiological adaptations.
- 05
Right whales produce only one calf every three to four years, among the lowest reproductive rates of any large whale species, making population recovery extremely slow.
- 04
Pregnant gray whales migrate over 12,000 miles annually while carrying calves, completing one of the longest journeys of any pregnant mammal in the animal kingdom.
- 03
During pregnancy, a sperm whale's uterus expands to accommodate a calf that weighs approximately 2,000 pounds at birth, making it one of the largest newborns in the animal kingdom.
- 02
Blue whale calves consume up to 150 gallons of milk daily during nursing, gaining roughly 200 pounds per day in their first year of life.
- 01
The 16-month gestation period of humpback whales represents one of the longest pregnancies among marine mammals, allowing calves to develop to advanced stages before birth.