state any two features of dolphins that help them to swim in water
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They need rudders and propellers. Look closely at a whale or dolphin – you'll see that many have a dorsal fin, the fin that sticks up from the back of the animal. Scientists believe that the dorsal fin acts as a stabilizer or a rudder....
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They need rudders and propellers. Look closely at a whale or dolphin – you'll see that many have a dorsal fin, the fin that sticks up from the back of the animal. Scientists believe that the dorsal fin acts as a stabilizer or a rudder.
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