Animal Actors are Safe at Work?

I think that when Tonya Obeso is doing her job taking care of the animals and keep them from harming the camera crew during the shotting of the movie. When people are doing movies with animals they would call people who has been to a school were they know about animals and who have studied there motion. People who have went to the American Humane Association are the ones who are being called up to work with the animals in the movie.