If you are well educated and informed, you can teach your friends and family about local wildlife and how they might need protection. So to get started, you can begin learning about how interesting and amazing these creatures are.
Visit your local government wildlife agencies dedicated to the preservation of endangered species in your area. (For U.S. residents, each state should have a local Fish & Wildlife Service established.) These agencies may even have activist networks that you can subscribe to via e-mail to receive updates and action alerts.