Temple Grandin

Temple Grandin is one of the world's greatest animal behaviorists. She is also autistic — and has put that to work for her. Grandin has written several books on animals, including Animals in Translation: Using the Mysteries of Autism to Decode Animal Behavior. This weekend, HBO will premiere a made-for-TV movie based on her life.

In her new book, Animals Make Us Human, Temple Grandin examines common notions of animal happiness and concludes that dogs, cats, horses, cows and zoo animals — among other creatures — possess an emotional system akin to that of humans.