Prince Philip was the first President of the World Wildlife Fund UK, from its formation in 1961 to 1982, and International President of WWF (now World Wide Fund for Nature) from 1981 to 1996. On behalf of the WWF in February 1988, he visited the threatened winter habitat of the Monarch butterfly in Sierra Chincua, Michoacan State, Mexico, where this image captured the moment he was surrounded by a cloud of the butterflies.