Veterinarians help diagnose any medical issues faced by many different types of animals, from small rabbits and hamsters to dogs to horses and reptiles. They will help animals who are aging, animals who are hurt, and will proscribe medication or perform medical tests in much the same way a doctor treats a human. Veterinarians usually have private practices, but others work with wildlife. Veterinary technicians are essentially veterinary assistants. A veterinary technician will also help by performing certain medical tests, advising owners on the proper care techniques for their pets, and performing simple tasks like cutting nails, cleaning teeth, and taking temperatures.