1. All mammals: Breathe water Breathe air Breathe air or water, depending on where they live

2. All mammals feed their newborn babies: Fish or meat Mother’s milk Plants

3. Most mammals: Live in the ocean Live on the land Live in underground caves

4. Marine mammals are mammals that: Live by the beach Live in rivers Live in the ocean

5. Cetaceans are a type of marine mammal that includes: Manatees and dugongs Whales and dolphins Seals, sea lions and walruses

6. Marine mammals are able to: Use wings to fly Store oxygen longer than land mammals Breathe water

7. Walruses use their tusks to: Help pull themselves up onto shore Hold their heads up while they sleep Neither of the above

8. Blubber is a heavy layer of fat that Some people get as they age Helps keep marine mammals warm in cold water Helps marine mammals float

9. Dolphins (a cetacean) “hear” Through their ears, just like us Through echolocation They don’t hear

10. Large eyes: Help dolphins hear Help animals to see in dark water Aren’t found in marine mammals