Most programmes or series focus on a particular species, ecosystem or scientific idea (such as evolution). Although most take a scientific and educational approach, some anthropomorphise their subjects or present animals purely for the viewer's pleasure.

Although almost all have a human presenter, the role varies widely, ranging from explanatory voiceovers to extensive interaction or even confrontation with animals.

Well-known nature documentary makers and presenters include Oscar-winning Bernhard Grzimek, David Attenborough, Richard Brock, Jacques Cousteau, Marlin Perkins, Heinz Sielmann, Hugo van Lawick, Jeff Corwin, Mark Strickson, Neil Harraway and Steve Irwin.

The Panda Awards for nature documentaries are given every two years, by the Wildscreen Trust, in Bristol, UK.

Most documentaries are for television and are usually of 45–50 minutes duration, but some are made as full-length cinematic presentations.

Such films include: