A rabid animal is one that has been infected with the rabies virus, a serious disease that affects the nervous system. This virus is typically transmitted through the bite of an infected animal, often seen in wildlife like raccoons, bats, and foxes. Symptoms of rabies in animals can include aggression, disorientation, and excessive salivation. Rabies is a preventable viral infection, and vaccination is crucial for pets like dogs and cats. If a person is bitten by a rabid animal, immediate medical attention is necessary to prevent the onset of symptoms, which can be fatal once they appear.