Capybaras are the world largest rodents with complex social and aquatic needs. They have become popular in zoos and illegally kept as pets.
Capybara welfare depends on social housing and water access - individually housed or water-deprived capybaras suffer significantly. In good zoo environments with appropriate groups and pools, capybaras can thrive. The pet trade presents more serious welfare risks as owners often underestimate space, social and water requirements. Their increasing popularity on social media has driven pet demand without corresponding welfare awareness.