Birds show the colors of their bright feathers to attract females.

Reptiles and insects change their color to hide from predators.

Some species of fishs show bright colors to warn predators.

• There are several separate reasons why skin have evolved colours.
• Camouflage enables an animal to remain hidden from view.
• Animals use colour to advertise services such as cleaning to animals of other species; to signal their sexual status to other members of the same species; and in mimicry, taking advantage of the warning coloration of another species.
• Some animals use flashes of colour to divert attacks by startling predators.
• Zebras may possibly use motion dazzle, confusing a predator's attack by moving a bold pattern rapidly.
• Some animals are coloured for physical protection, with pigments in the skin to protect against sunburn, while some frogs can lighten or darken their skin for temperature regulation.
• Animals can be coloured incidentally. For example, blood is red because the haempigment needed to carry oxygen is red. Animals coloured in these ways can have striking natural patterns.

Best regards

Birds show the colors of their bright feathers to attract females.

Reptiles and insects change their color to hide from predators.

Some species of fishs show bright colors to warn predators.

Agree with M. A. A. Al- Fatlawi

Interesting question

I follow the answers

Greetings

The skin or hair color develops according to the evolutionary requirements. It has no relation with their nature or character, I think.