A veterinarian, or vet for short, is an animal doctor. Vets help sick and injured animals get better. Vets can do almost anything a regular doctor can do. Vets usually specialise in a particular kind of animal, looking after only pets like dogs and cats, or just horses, or just farm animals like cows and sheep. Some vets work in zoos with exotic animals like lions and elephants. Working as a vet with large animals or wild animals can be very dangerous.