Table 1.

Classification of the nine assessed zoos in South Korea.

Zoo grade		Zoos	No. of species	No. of animals	Operation classification	Type (indoor/outdoor)
A	AZA-accredited zoos	A1	237	2,112	public	Mixed
		A2	127	1,543	private	Mixed
B	Unaccredited large zoos with >50 species	B1	50	266	private	indoor
		B2	60	2,897	private	indoor
		B3	79	821	private	Mixed
C	Unaccredited small zoos with <50 species	C1	9	49	private	indoor
		C2	17	694	private	indoor
		C3	41	1,023	private	indoor
		C4	48	298	private	indoor

This table categorizes the nine zoos based on accreditation status, number of species, population, operational classification (public/private), and type (indoor/outdoor). Group A consists of AZA-accredited zoos with a larger number of species and animals. Groups B and C include unaccredited zoos, with Group B housing more than 50 species and Group C fewer than 50 species. Understanding these classifications helps us see how accreditation and zoo size may influence animal welfare outcomes.