Whales are mammals and are nourished in the womb through an umbilical cord. ... Whales are viviparous, they give birth to live young (unlike fish, most of which lay eggs).

Are whales oviparous or viviparous?

Most mammals are viviparous in nature. Platypus (Ornithorhynchus) and Echidna (Tachyglossidae) are oviparous mammals. Whales and bats are viviparous animals.

How does whale get pregnant?

Blue whales reproduce via sexual meiosis. The male and female each produce haploid gametes. Male gametes are sperm, and the female gametes are eggs. ... They fertilize internally, meaning sperm is deposited inside the female.