How do animals use scent to communicate and navigate?

Animals use scent in various ways to communicate and navigate with their environment. Many animals, such as dogs, use scent to identify other animals or objects in their environment. This is achieved through olfaction, the ability to detect and discriminate different odors. Some animals use scent to mark their territory or to attract a mate, while others use scent to warn of predators or to signal readiness to mate.

Scent is also used by many animals to navigate through their environment. For example, some species of birds, such as pigeons and seabirds, can navigate long distances by using their sense of smell to detect different odors in the air. Some mammals, such as rats and bats, use echolocation to navigate and locate prey, but they also use their sense of smell to detect other animals in their environment.