Why Do Most Fish Have Slim or Tapering Bodies

most creatures that spend their whole lives in water have a sleek streamlined shape that helps them to swim.
fish come in many different shape and size. Eels are long and slender. Plaice and rays are flat.

Angelfish are tall and thin, so they are hard to see from the front as they approach their prey. other fish are rounded but almost all have a tapering shape that allows them to slip easily through the water.

img credits: pixabay

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