What type of special degree is required for a veterinarian?

In the US, the degree required to practice veterinary medicine is a DVM (Doctor of Veterinary Medicine) or VMD (Veterinary Medical Doctor, specific to graduates from The University of Pennsylvania's School of Veterinary Medicine). This is a four-year graduate degree program that you can apply to only after completing at least three years of undergraduate college courses.

Other countries have different requirements for education and different names for the final degree, but the knowledge base and competence are equivalent.