What are the animals covered with scales?

Scales are a type of external covering that are typically found on reptiles, fish, and some invertebrates, such as insects and mollusks. Some mammals, such as pangolins, also have scales.

* Reptiles: All reptiles have scales, which help to protect their skin from drying out and provide them with support and insulation. Snakes, lizards, crocodiles, and turtles are all examples of reptiles that have scales.

* Fish: Fish have scales that are made of a combination of proteins and minerals. The scales help to protect the fish from injury, infection, and water loss. Some fish, such as sharks and rays, have small, overlapping scales, while others, such as salmon and trout, have larger, more noticeable scales.

* Invertebrates: Some invertebrates, such as insects and mollusks, have scales. Insects have scales on their wings, while mollusks have scales on their shells. The scales of insects and mollusks help to protect them from the elements and from predators.

Pangolins are the only mammals that have scales. The scales of pangolins are made of keratin, the same material that makes up human fingernails and hair. The scales of pangolins help to protect them from predators and from injury.