Female beluga whales become sexually mature before males, at 4-7 years, and reproduce every 2-3 years until about 20 years of age.
Females become sexually mature at 4 to 7 years of age, while males take 7 to 9 years. Females reproduce every 2 to 3 years and stop reproducing in their early twenties.
Sources: (Bonner, 1989; Lentfer, 1988; Paine, 1995; Williams, 2002)
Image: Cello5
