How much can you remember about fish and marine mammals?
Here is a short summary table to help refresh your memory!
| Fish | Marine Mammals |
| Fish swim by moving their tail from side to side. | Marine mammals swim by moving their tail up and down. |
| Fish have gills that allow them to breathe underwater. | Marine mammals have to come to the surface to breathe air. |
| Fish are cold-blooded animals. | Marine mammals are warm-blooded. |
Whales in the sea