Archive video clips of American wildlife featured in this episode are a pack of wolves (currently inhabiting portions of the Great Lakes region, northwestern United States and Alaska) and bears (Grizzlies are only found in Alaska, Montana, Idaho, Wyoming, and northern Washington state bordering the Canadian province British Columbia. American black bears reside in states near the Rocky, Ozark and Appalachian Mountains as well as Alaska). In addition, there are video lectures about turtles and bald eagles.