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how does a fish moves

Streamlined body is a type of body shape in which the middle portion of the body is broad and there are two tapering ends. Fishes have a streamlined body shape. This shape allows them to easily move in water. 

When a fish swims in water, the muscles that cover its skeleton cause the front part of the body to curve towards one side. On the other hand, the tail (having fins) curves towards the opposite side.

Then, immediately the body and the tail curve towards the other side. This causes a jerk, thereby pushing the body to move forward. Many such jerks in succession help the fish move forward.

Function of fins:

  • The fins located on the tail of fishes help them in moving in water.

  • The fins located on the body of fishes helps in maintaining the balance of the body while swimming.

 

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fish moves with his fins

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They use their fins and tail to propel them. They also have a swim bladder that allows them to move up and down. This is how fish move while swimming.

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By the help of fins,tail and the streamlined body.

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with the help of its fins,tails and streamlined body

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Fish move by moving their body from side to side in a zigzag manner. This pushes the water and moves the fish's body forward. The muscles on either side of the fish's backbone expand and contract to make this movement possible.

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