Wildlife and international conservation volunteering - Green Volunteers: voluntary work with animals, in nature conservation, humanitarian and archaeology volunteer work overseas, for a gap year or research project.
Green Volunteers - The World Guide to Wildlife Work and Voluntary Work in Nature Conservation is a worldwide resource for international nature conservation and wildlife work and volunteering opportunities with animals, ideal for wildlife vacations or holidays, gap year, career break, to find conservation expeditions, or for students to find research or credit opportunities; international volunteer work opportunities are in Africa (Kenya, Tanzania, Botswana, South Africa, Madagascar), Europe (UK, Greece, France, Italy, Spain, Portugal, Eastern Europe), North, Central (Costa Rica, Guatemala) and South America (Ecuador, Galapagos, Peru, Bolivia, Brazil), South East Asia (Thailand): biodiversity and endangered species to work with are: marine mammals, whales, dolphins, sea turtles, sharks, seals, coral reefs, primates, wolves, bears, large cats and more
http://www.greenvolunteers.org