When and why do tigers roar?

The situations during which tigers roar indicate that it is mainly used for long-distance communication. And the sound of the roar, which is obviously very loud, also supports this viewpoint. Tiger roar. Image: MikeB Tiger roaring is heard in a variety of contexts including the following as per Mel and Fiona Sunquist in their book Wild Cats of the World ( buy the book if you are interested in the wild cats as it is the best ) after a tiger has killed a large animal as a prelude to mating during mating when a female beckons a young and when some tigresses advertise sexual receptivity ( I expand on this below ). A contributor to the Reddit.com discussion on this topic, Nick Nicholas (40 years studying big cats 😎) says that male tigers roar to attract females. He correctly states that the home range of male tigers encompasses those of several females, and males know when a female is in season from their scent, and they will roar to attract her. He also says that tigers roar to warn other...