WONDER #1506: What Makes an Animal a Mammal?

Question 1 of 3

Human beings and blue whales have something in common in that they are both what?

1. insects
2. fish
3. mammals
4. sea creatures

Question 2 of 3

Which of the following is NOT a characteristic shared by all mammals?

1. hair
2. mammary glands
3. warm blood
4. wings

Question 3 of 3

Which of the following mammals lays eggs instead of giving birth to live young?

1. cow
2. sheep
3. human being
4. platypus

Check your answers online at https://www.wonderopolis.org/wonder/what-makes-an-animal-a-mammal.