The article tells us about a new discovery of scientists about the flowers. It came as a real surprise to find that flowers produce a special glow that humans cannot see to attract bees. This flower’s secret weapon called as “ invisible blue halo”. While studying deeply, the scientist discovered that to create “blue halo”, flowering plants had to evolve many times across different flower lineages, which began about 100 million years ago. However, not all flowers are able to produce “ blue halo”, so the article also shows that bees can distinguish between a flower with a blue pigment and one without. Therefore, the halos tell them which flowers contain their favorite food!