The World Wildlife Fund (WWF) is an international non-governmental organization that works to protect endangered species and their habitats. The organization was founded in 1961 and is headquartered in Washington, D.C. WWF has a presence in more than 100 countries and works with governments, businesses, and communities to promote conservation and sustainable development. The organization's work focuses on a variety of issues, including climate change, wildlife trafficking, and sustainable agriculture. WWF is funded by donations from individuals and organizations.