United States federal agency that manages national wildlife refuges, protects endangered species, manages migratory birds, restores nationally significant fisheries, and enforces federal wildlife laws.

The Nature Conservancy is tackling the root causes of some of the toughest problems facing people and nature today, replicating good ideas to save many places and improve people’s lives.

Defenders of Wildlife works on the ground, in the courts, and on Capitol Hill to protect and restore imperiled wildlife and habitats across North America. Together, we can ensure a future for the wildlife and wild places we all love.

World Wildlife Fund - The leading organization in wildlife conservation and endangered species. Learn how you can help WWF make a difference.

NRDC uses science, policy, law, and people power to confront the climate crisis, protect public health, and safeguard nature.

national invasive species information center -- the gateway to invasive species information; covering federal, state, local and international sources.

the xerces society is a science-based nonprofit organization that protects wildlife through the conservation of invertebrates and their habitats.

Bats are vital to our world’s ecosystems and economy, We’re working worldwide to ensure the survival of these extraordinary mammals.

The Union of Concerned Scientists puts rigorous, independent science to work to solve our planet's most pressing problems. Joining with people across the country, we combine technical analysis and effective advocacy to create innovative, practical solut