Earthwatch is an international, non-profit organization dedicated to sponsoring field research and promoting public education in the sciences and humanities. Earthwatch has pioneered a unique method of supporting field-based science through "participant funding", through which Earthwatch recruits non-specialist volunteers from the general public to collectively share the costs of a research project and join Earthwatch-supported scientists as field assistants. Past projects have been successfully fielded in, but are not limited to, the following disciplines: animal behavior, biodiversity, ecology, ornithology, endangered species, entomology, botany, and resource and wildlife management. Interdisciplinary projects are especially encouraged as is multinational collaboration. Earthwatch primarily supports post-doctoral researchers or equivalent scholarship, including Principal Investigators with commensurate life experience. We welcome proposals from advanced scholars and professionals of any nationality, covering any geographic region. Information can be found at http://www.earthwatch.org/research/ or you can contact us at research@earthwatch.org.