Dogs Cats 6 Pets and Companion Animals 6 Human-animal relationships 4 Animal Behaviour 3 Animal Genetics and Breeding, (New March 2000) 3 Genetics 3 Livestock 3 Man 3 Pigs 3 Animal behaviour 2 Animal welfare 2 Behaviour 2 Cattle 2 Domestic animals 2 Domestication 2 Evolution 2 Feral dogs 2 Gene mapping 2 Genes 2 Genetic disorders 2 Genome analysis 2 Goats 2 Horses 2 Mammals 2 Protozoan, Helminth and Arthropod Parasites of Humans, (New March 2000) 2 Protozoan, Helminth, Mollusc and Arthropod Parasites of Animals, (New March 2000) 2 Ruminants 2 Sheep 2 Taxonomy and Evolution 2