An orb-weaving spider species was specially chosen as the subject of a new study because the females emit sex hormones to attract males, leading researchers to believe that smell must be important in this spider's world.

Spiders have always lived alongside humans, so it's surprising how much we still don't know about them. One long-standing mystery was related to how spiders detect smells. Now, our latest research has finally uncovered the secret.

Sensory organs on the walking legs of the male wasp spider can catch the scent of a female in a mood for romance.