How do animals benefit humans through therapy?

Question
Hi I hope you can answer this question for me: How do animals benefit humans through therapy? I am doing an informative speech on animal benefits and would love an interview with an expert to build credibility in my speech. Please give me all the information you can and I will be sure to give credit to you for your assistance.
P.S If you would like me to give you credit under a different name please let me know in your response
Thank you in advance for your response

Answer
I appreciate your hard work Danielle but I am not an expert on this, or a vet. I am a registered vet tech.
We cannot do homework questions anyway, so I suggest you speak to a local vet where you live.

You will get a higher quality interview that way. Good luck!