If you are ever interested in watching an expository and observational documentary about tigers, “Tiger: Spy in the Jungle” is a great documentary that was filmed in 2008. David Attenborough narrates the lives of four growing tiger cubs by using footage collected by hidden-camera-carrying elephants in India. Through the two years of shooting this documentary, the elephants ended up catching amazing footage of the most intimate portrayal of tigers. If interested, you can look at the link below.