Instead of calculating absolute distances when
mapping the
path to nectar, the researchers conclude, honeybees measure distance using what is known as optic flowthe amount of
image motion that appears to occur as the position of the observer changes.
His
images portray the long - beaten
path of Dubliners in their environment; individually monotonous journeys unfolding like a series of
maps to reveal the day - to - day goings - on at Doyle's doorstep.