Use binoculars, keep distance, and never feed wild animals for a photo.

Observe from trails and viewpoints. If an animal changes behavior because of you, you are too close — step back quietly.
Use zoom or binoculars instead of approaching nests, dens, or young animals. Feeding wildlife teaches dangerous habits.
Pack out trash and stay on durable surfaces. Ethical watching keeps habitats healthy for the next visitor and the animals themselves.