Describes the various ways different animals use their mouths and noses.

Being a Dog, combines a personal journey of smelling with a tour through the cutting edge and improbable science behind the olfactory powers of the dog. As we come to understand how complex the world around us appears to the canine nose, Horowitz changes our perspective on dogs forever.

Describes how various animals' sense of smell can help them search for food, defend themselves against predators, find a mate, protect their young, and migrate long distances, with liftable flaps which provide additional information about specific species.