How do animals affect humans?

Humans love animals. Animals are like counselor's. Their are many types of animals that seem as if they know if you are mad such as (cats and dogs) but the most familiar is a dog. Don't get me wrong but cats are good counselor's to but not as familiar as dogs. dogs have helped save lives in all kinds of situations such as: saving people from drowning, digging people from snow, and etc. Also dogs are used for other reasons such as: guiding the blind, staying with people at the emergency room, and in nursing homes.