At a dinner party, or in the schoolyard, the question of favourite colour frequently results in an answer of "blue". Why is it that humans are so fond of blue? And why does it seem to be so rare in ...

NEW YORK — Some flowers have found a nifty way to get the blues. They create a blue halo, apparently to attract the bees they need for pollination, scientists reported Wednesday. Bees are drawn to the ...

Many gardeners already know to plant blue flowers in their gardens to bring in bumblebees. But scientists have found a new set of bee-friendly plants which have a special glow we cannot see. These ...

In nature, blue is much rarer than you might think. Sure, the sky is blue when the weather’s nice, and so is the ocean. But the vast majority of plants and animals are incapable of making blue pigment ...