Research conducted at Oxford, Sussex and Zurich Universities has shown that when desert ants return from a

-> Research conducted at Oxford, Sussex and Zurich Universities has shown that when desert ants return from a

foraging trip, they navigate by integrating bearings and distances, which they continuously update in their

-> foraging trip, they navigate by integrating bearings and distances, which they continuously update in their

heads. They combine the evidence of visual landmarks with a mental library of local directions, all within a

-> heads. They combine the evidence of visual landmarks with a mental library of local directions, all within a

framework which is consulted and updated. So ants can learn too. In the second line " by intergrating bearings

-> heads. They combine the evidence of visual landmarks with a mental library of local directions, all within a

and distances" What does mean that?

-> and distances" What does mean that?