What is the primary function of scales?

Scales:

1. Small rigid plates that grow out of animal skin are known as scales.
2. Organisms like fish, reptiles, arthropods, birds, and mammals have scales on their bodies.

Primary function of scales:

1. In Pisces, the primary function of scales is to provide protection against predators.
2. Scales also prevent the delicate muscle tissues underneath them from the outside environment.
3. Scales reduce the friction from water because of their shape.
4. They also help to camouflage the fish.