We know that animals play important roles in our social, cultural and political lives, as loved ones, friends and companions, workers, 'livestock', 'products' and 'commodities'. For instance, in Australia, 63 percent of households include a companion animal, many people living with companion animals consider them to be "family members" (estimates vary between 75-90 percent), and the pet animal industry contributes approximately AUD$4.74 billion annually to the economy (Australian Companion Animal Council, nd).
The bond between many humans and their animal companions is often very strong, invoking emotions of attachment and pleasure. Human–companion animal relationships may allow people to experience themselves and their lives in significantly different ways; ways that are very positive. Humans who describe themselves as 'animal lovers' usually see their pets as valued family members, whether (or not) these animals are substitute children, friends, protectors, and/or sources of companionship and affection. Also, plenty of people feel affection or even love towards animals they do not keep as companions or pets, such as native birds that visit them or injured wildlife that they help to care for until they are ready to be released into their habitat.