All vertebrates, those are animals with backbones, have skin! Skin helps these animals, including salamanders, in many ways like:

- Protection them from pathogens and germs like bacteria and viruses that could make a salamander sick
- Sensing the environment by feeling things like hot/cold and wet/dry
- Keeping the body the right temperature
- Keeping nutrients and water inside the body where they are needed

If you want to learn more about skin and what it is made of, check out this cool website: