In which one of the following sets of animals do all the four give birth to young ones? (a) Kangaroo, hedgehog, dolphin, Loris (b) Lion, bat, whale, ostrich (c) Platypus, penguin, bat, hippopotamus (d) Shrew, bat, cat, kiwi
Option A Kangaroo, hedgehog, dolphin and Loris are mammals and thus give brith to young ones. Ostrich and kiwi are brids that lay eggs. Platypus is a most primitive living mammal that lays eggs. Other animals in the options are mammals and give birth to young ones.
