Petting a dog, a camel or an elephant can reduce feelings of loneliness and stress. Assuming of course, you don’t get spat upon, peed on, bitten or squashed.

It’s not that animals have magic vibes coming out of them. It’s about giving people a sense of life beyond what they ordinarily experience.
Quotation from William Banks, Saint Louis University

Elephant Therapy and Equine Therapy Programs are used as tools for gaining self-understanding and emotional growth in adults and children, and are especially effective for children with Asperger’s and Autism.