What do vets do to the animals?

They are doctors and take care of the sick but not humans. These doctors specialize in caring for animals like dogs and cats etc. If your animal is to get sick and you need help a veterinarian is who you go to for help.

They generally diagnose and treat diseases of animals; and also care for the health of pets, livestock, and animals in zoos, racetracks, and laboratories. They usually work long hours and have to deal with demanding pet owners.