Karl
Frich (1886-1982) was an Austrian zoologist who studied how bees communicate
with other. In 1973 he received a Nobel Prize for his work on animal behavior.
The sent
from a flower that has produced nectar through the air. It may stimulate the
receptor cell of a honey bee and the insect flies towards it. As it get closer,
the bee uses its eyes to find the flower, its eyes are sensitive to ultraviolet
light. This make some of the pale markings we see in normal light stand out
more distinctly to help the bee identify the flower. Some of the markings are
lines running down the inside of petal. They are called honey guides and direct
the bee towards the nectar.