 She subsequently spent more than twenty-five years studying animal behavior as a horse and dog trainer.Central to Hearne's view on animal training was her belief that animals should not be defined by behaviorists' dictates, that in their individuality they have the capacity to be in reciprocal relationships with humans both emotionally and morally.In addition to her poetry, she authored several books on animals and animal-training theory, including "Adam's Task", "Bandit", and "Animal Happiness".