A nature documentary is a movie or TV show about animals and plants living in the wild. It's usually filmed outside in the natural habitat of the animals or plants so you can see them in their natural environment. In the documentary, a narrator will usually describe the animals and tell interesting stories about them and how they live. Sometimes, researchers might even follow the animals around and record their behavior. Nature documentaries can be very interesting and educational, and can teach us a lot about the natural world around us.