Penguins are popular zoo exhibits but require specific environmental conditions including cold temperatures, adequate water volume, and social groups that many facilities do not fully provide.
Penguin welfare in captivity requires attention to thermal environment, social structure, pool volume, and substrate — factors that interact to determine whether penguins can express natural behaviour. Species differences are important: African and Humboldt penguins tolerate warmer temperatures than Antarctic species and have different welfare needs accordingly. Pool volume is often inadequate; penguins that cannot swim freely are unable to engage in the locomotion that dominates their natural lives. Foot health on hard artificial substrates is a common problem that appropriate flooring materials can reduce. Social groups that are too small prevent the colony dynamics that these social birds require for psychological welfare.