Active and passive methods of defense that are found in fish.

To survive, you need to have certain adaptations or skills that can help in most cases.

As an active means of protection in fish, it is worth highlighting flight. The presence of a speed exceeding the capabilities of a predator will always help you get out of the water. In addition, some fish prefer to hunt predator fry, which, growing up, hunt them.

Color, thorns and the ability to hide can be distinguished as passive protection.

All (almost) fish have a white belly and a dark color of the back, so that the animal is not noticeable from above and below. Many fish have the color of the sea or river bottom, or algae. Which makes it easy to blend in with the surroundings. Also, some individuals prefer to hide in burrows.