Question

Why do fish have waterproof scales on their bodies?

Answer 1

Fishes:

A fish scale is a small plate that grows out of the skin of a fish.

Fish have scales whose functions are:

1. They are the first line of defense against predators. This helps them to fight against their predators.
2. They help with camouflage.
3. They have a hydrodynamic advantage and reduce water resistance when fish are swimming.