Penguins are popular zoo animals whose welfare depends on appropriate water temperature, colony social structure, nesting opportunities, and veterinary management of common diseases.
Penguin welfare in captivity is complex because the group includes species with very different temperature requirements, social structures, and feeding ecology. Temperate species including African and Humboldt penguins often thrive in zoo settings with appropriate management, while cold-adapted species including Emperor penguins have much more demanding welfare requirements that most facilities cannot meet. Social housing in appropriate colony sizes, water quality management, and disease surveillance are fundamental welfare components. The high profile of penguins as zoo attractions can drive overcrowding to allow more viewing, which must be balanced against colony welfare needs.