Which of the following animals is not viviparous?
Platypus
Whale
Flying fox (Bat)
Elephant.
Viviparous animals give birth to living young that are sustained by mammary glands and they correspond to the class Mammalia. Viviparous creatures are distinct from egg-laying animals, which include birds and most reptiles. Humans, dogs, whales, flying foxes (bats), elephants, and cats are all viviparous. Platypus is a mammal that lays eggs.