Worldwide organizations:
The Nature Conservancy - The Nature Conservancy's mission is to 'preserve the plants, animals and natural communities that represent the diversity of life on Earth by protecting the lands and waters they need to survive' (mission from The Nature Conservancy magazine).
The World Wildlife Fund - The World Wildlife Fund (WWF) is the world's largest privately-supported international conservation organization. The WWF aims to protect wildlife and threatened habitats.
World Conservation Union - The World Conservation Union promotes sustainable, ecologically-sound development practices while maintaining and protecting biodiversity. Visit their website for information about their conservation efforts.
Wildlife Conservation Society - The Wildlife Conservation Society 'saves wildlife and wild lands through careful science, international conservation, education, and the management of the world's largest system of urban wildlife parks, led by the flagship Bronx Zoo' (from the World Conservation Society website).
US organizations:
The Sierra Club - Find out about the conservation programs and publications of this grassroots organization whose mission it is to explore, enjoy, and protect wildlife and wilderness areas.
National Wildlife Federation - Visit the National Wildlife Federation website for the latest news, conservation information, and research concerning wildlife and natural habitats. This organization unites individuals, policy makers, and businesses in an effort to protect the environment.
Friends of Haleakala National Park - The Friends of Haleakala National Park supports 'educational, cultural, research, and service activities relating to the Haleakala National Park and its ecosystems' (Source: FHNP website). This stunning park, located on Maui's Haleakala volcano, is home to more threatened and endangered species than any other national park in the United States including the Hawaiian state bird, the Nene.
The National Audubon Society - It is the mission of the National Audubon Society to conserve and restore natural ecosystems. Their efforts focus on birds and other wildlife and their work is aimed to benefit humanity and the earth's biological diversity.
Ducks Unlimited - Ducks Unlimited 'conserves, restores, and manages wetlands and associated habitats for North America's waterfowl. These habitats also benefit other wildlife and people' (mission from Ducks Unlimited website).
UK organizations:
The Woodland Trust - The Woodland Trust is among the UK's most prominent conservation organizations. The Trust works with government, individuals, and other conservation organizations to protect and improve the future of the UK's woodlands.
The National Trust - The aim of the National Trust is to conserve countryside and heritage while preserving the environment for future generations.
RSPB - The Royal Society for the Preservation of Birds works to protect the environment to maintain a rich diversity of birds and wildlife.
The Wildlife Society - The mission of the Wildlife Society is to enable wildlife professionals to better conserve diversity, sustain productivity, and advance the responsible use of wildlife resources for the benefit of society.
Protecting specific groups of animals:
The Whale and Dolphin Conservation Society - The Whale and Dolphin Conservation Society works to protect whales and dolphins and the environments they inhabit.
Bat Conservation International - Bat Conservation International are the conservation, education, and research initiatives involving bats and the ecosystems they serve.
Sea Turtle Restoration Project - The Sea Turtle Restoration Project 'fights to protect endangered sea turtles in ways that make cultural and economic sense to the communities that share the beaches and waters with these gentle creatures' (from Sea Turtle Restoration Project website).
The Jane Goodall Institute - The Jane Goodall Institute works for the protection of primates while also advancing 'the power of individuals to take informed and compassionate action to improve the environment of all living things.' (from JGI website).