For those of you who remember the pre-cellphone era: have you ever scanned a crowd to find someone? Perhaps a friend you were supposed to meet. Perhaps a child who wandered away from your group?
Can you remember how your eyes transitioned from a “wide area scan” to a narrow focus when you thought you’d found them? Well, it turns out that animals have this skill too. Not only can they focus their sight, they can also focus their nose.