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Dolphins are Not Fish
Transcript & Visual Description

Audio Visual
Dolphins are Not Fish

Featuring the Bottlenose Dolphin. By Stephen Schutz.
A dolphin and a school of tiny fish swim underwater.
Did you know that dolphins are not fish? They are different from fish in many ways. A pod of ten dolphins swimming underwater.
Dolphins must come up to the surface to breathe. Fish can breathe under the water. A dolphin rising towards the surface.
Dolphins have one blowhole. They breathe in and out through it. Fish do not have blowholes. You can clearly see a blowhole on top of the dolphin's head.
Dolphins move their tails up and down when they swim. Fish move their tails from side to side. Image sequence shows a dolphin swinging his tail up and down. Another series shows a fish moving his tail from side to side.
Dolphins have smooth skin. A fish's skin is not smooth. Two girls smile as they stroke a friendly dolphin's skin. A close-up of a fish showing its scales.
Dolphins are mammals. A mother dolphin nurses her calf. Fish are not mammals. A mother dolphin with her calf, just beneath her.
Dolphins see objects by making sounds and listening for an echo. This is called echolocation. Fish cannot do this. Diagram shows lines representing sound waves. These are emitted from the dolphin and bounce back.
Dolphins are playful. They like to swim in the bow waves of ships. Fish do not do this. A dolphin jumps in front of a huge, fast-moving ship.
Dolphins are very smart. Some learn to do tricks. Fish don't appear to be as smart. A dolphin jumps over two swimmers.
Now you know why dolphins are not fish. Three dolphins jump high out of the sea.