Instagram, the visual-sharing app, has gradually evolved as a profit-generating machine for many businesses that understand the psychology behind each of the awesome features offered for commercial users.
When bees change jobs, they change their brain chemistry. Scout bees, which search for new sources of food, are wired for adventure. Soldier bees work as security guards their whole life. One percent of all middle-aged bees become undertakers. Regular honeybees -- which perform multiple jobs in their lifetime -- will change their brain chemistry before taking up a new gig.