Bumblebees use perfume patterns to tell flowers apart

Study also suggests they can spot similarities between patterns of scent and those made with colour

Pollinators don't just wing it when it comes to finding a sweet treat: the shape, colour, perfume and even electrical charge of flowers are all known to offer clues.

But now researchers say bumblebees also use another floral feature to guide them: how the concentration of a scent varies across the flower's surface.