Veterinarians are animal doctors who diagnose illnesses, perform surgeries, and promote wellness for creatures great and small—from guinea pigs to giraffes. They study biology, chemistry, anatomy, and lots of compassion, using stethoscopes, X-rays, and careful observation to solve medical mysteries. Some vets protect public health, monitor wildlife, or research new treatments that help both animals and humans. Their work shows that science and empathy together can give our furry, feathered, and scaly friends healthier, happier lives.