Wildlife refers to undomesticated animal species, but has come to include all organisms that grow or live wild in an area without being introduced by humans. Wildlife was also synonymous to game: those birds and mammals that were hunted for sport. Wildlife can be found in all ecosystems. Deserts, plains, grasslands, woodlands, forests, and other areas including the most developed urban areas, all have distinct forms of wildlife. While the term in popular culture usually refers to animals that are untouched by human factors, most scientists agree that much wildlife is affected by human activities. Some wildlife threaten human safety, health, property and quality of life. However, many wild animals, even the dangerous ones, have value to human beings. This value might be economic, educational, or emotional in nature.

Wild Kingdom, also known as Mutual of Omaha's Wild Kingdom, is an American documentary television program that features wildlife and nature. It was originally produced from 1963 until 1988, and it was revived in 2002. The show's second incarnation aired until 2011 on Animal Planet in the United States. A third incarnation streamed webisodes on a dedicated YouTube channel from 2013 to 2018. Starting April 4, 2021, the program will be shown in its traditional Sunday timeslot on the cable channel RFD-TV. A fourth incarnation, Mutual of Omaha's Wild Kingdom Protecting the Wild, hosted by Peter Gros & Dr. Rae Wynn-Grant, premiered on NBC as part of the network's Saturday morning The More You Know educational and informational programming block in October 2023.