Dogs have an extraordinarily acute sense of scent; it’s about a million times extra delicate than that of individuals. They can detect odors at extremely low levels and might distinguish odors which are subtly completely different. This is why dogs are capable of sniff out medication and explosives at airports, seek for human victims at disaster websites , and comply with the scent track of criminals. The ear canal of the canine is way deeper than that of people and creates a better funnel to carry sound to the ear drum. The average dog can hear about four times better than the typical particular person, including sounds at greater frequencies than may be detected by the human ear. Dogs are additionally better at distinguishing the course of a sound, which is an adaptation helpful for looking.