Nature is a wildlife documentary program that has been airing on PBS since 1982. Its longevity is explained partly by its quality; Nature has won numerous Emmy awards. Documentaries have explored a multitude of different animals, plants, and other aspects of the natural world. Subjects vary from "Africa" to "Yellowstone Otters".
Sorry, no info about the next episode of Nature is available yet.
The TV show is either in vacation or waiting to start their new season. When information about future episodes becomes available, it will be posted here.