Yes, they have scales.
Both the outer coverings of a duck (feathers) and a lizard (scales) are made of keratin. Keratin provides protection and helps with insulation and waterproofing for both animals. Additionally, both feathers and scales play a role in thermoregulation for the animals.
The scales act as a outer coverings of the animal, and it can help protect it from harm other animals.
Like most fish, piranhas have scales covering their skin.
They have tiny scales.
They use outer coverings to protect themselves from injuries, cold temperatures etc.
The body covery of the fish is there skins.
A piranha has scales....its a fish
hair
Pacu are a type of piranha. They do have scales, like most fish, as well as fins.
To make them feel confident.
Like most fish, piranhas have scales covering their skin.
It has a baby