The Given Name Jack. Originally a nickname for John, it is now also a popular name on its own. It derives from the earlier Jakin a medieval nickname for John. Jack is a diminutive of John. See John for further details. Jack is good for parents who want a name that is elegant and simple.
Small animal veterinarians are practitioners that specialize in the health management of dogs, cats, birds, exotics, and other companion animals. Small animal veterinarians are licensed animal health professionals that are qualified to diagnose and treat a variety of companion species. Small animal practitioners commonly treat dogs and cats as well as other small mammals, birds, and reptiles that are kept as pets.
But a few focus on large animals, such as sheep, cows, and horses. Large-animal vets usually drive to ranches and stables where their patients live. They check for infections in the animals and give advice to the animals' owners. Often, they help when the animals give birth.