In Animal Legal Defense Fund v. Glickman (2002), a federal court recognized the legal standing of animals, allowing them to be represented in court by legal guardians.

The Animal Welfare Act (AWA) is the primary federal law in the United States that regulates the treatment of animals in research, setting standards for their care and use.

The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) is an international treaty that aims to protect endangered species and their habitats by regulating the trade of these species.

Animal exploitation refers to the practice of keeping animals in captivity for entertainment purposes, such as in circuses, zoos, and aquariums, often raising concerns about animal welfare and rights.

Animal rights is a legal principle that recognizes that animals have inherent value and should not be treated solely as property, advocating for their protection and respect.

Animal agriculture is the practice of raising animals for food, encompassing various methods of animal husbandry, including factory farming, sustainable agriculture, and organic farming.

The Animal and Plant Health Inspection Service (APHIS) is the federal agency in the United States responsible for enforcing animal welfare laws, including the Animal Welfare Act.

Game hunting is the practice of hunting animals for sport, typically involving the pursuit and killing of wild animals for recreational purposes.

The World Organisation for Animal Health (OIE) is an international organization dedicated to promoting animal welfare and protecting animals from cruelty, setting global standards for animal health and welfare.

Animal experimentation is the practice of using animals for testing products and procedures, such as drugs, cosmetics, and medical devices, to assess their safety and efficacy.

Animal sentience is the legal principle that recognizes that animals are capable of experiencing pain and suffering, influencing policies and practices related to animal welfare and protection.

Free-range farming is the practice of raising animals in a natural or semi-natural environment, allowing them to roam freely and express their natural behaviors.

The Animal Welfare Act (AWA) also regulates the transportation of animals, setting standards for their care and handling during transport.

Captive breeding is the practice of keeping animals in captivity for conservation purposes, aiming to preserve endangered species and maintain genetic diversity.

Animal liberation is a legal principle that advocates for the complete abolition of animal use and exploitation, seeking to end all forms of animal suffering and oppression.