Carol Greenhill

Animal agriculture, Working animals, Animals in research, Hunting and fishing, Animal ethics and philosophy, Zoos and aquariums, Conservation, Humane farming, Humane education, Zoology, Animal cognition, Companion animals, Spay and neuter, Animal shelters, Food production, Environmentalism, Dogs, Cats, Rodents, Livestock, Working animals, Nuisance animals, Wild animals, Marine animals, Mammals, Birds, Reptiles and amphibians, Fish, Invertebrates