When it comes to spider love, female widow spiders hold the key to attracting mates, potentially adjusting their web's attractiveness to lure males, according to new research. A study led by Simon Fraser University's resident 'spider man,' PhD candidate Andreas Fischer, reveals new details about how female false widow spiders (Steatoda grossa) communicate using pheromones--and suggests they can build more attractive webs-- to lure mate-seeking males by adjusting the pH level of their pheromone-bearing silk.