منابع مشابه
Animal navigation
Nearly all animals move in an oriented way, but navigation is something more: the directed movement toward a goal, as opposed to steering toward or away from, say, light or gravity. Navigation involves the neural processing of sensory inputs to determine a direction and perhaps distance. For instance, if a honey bee were to seek food south of its hive, it would depart from home with the sun to ...
متن کاملAnimal Navigation: Northern Exposure
A recent study has found that sparrows moved gradually east above the Arctic Circle completely altered their migration strategy after encountering the massive natural change in declination near the magnetic pole. This should not happen--or should it?
متن کاملAnimal and robot navigation
It is argued that the following three properties are foundations of robust robot navigation: The use of landmarks (and, in particular, the use of a compass sense), the use of canonical paths, and the use of topological rather than geometrical maps. Some examples of successful animal navigation are presented that support this view. We have performed initial experiments with mobile robots to inve...
متن کاملAnimal Navigation: The Longitude Problem
Determining longitude is incredibly difficult--for humans. Are animals fooling us into thinking that they have bicoordinate maps? New experiments show that at least some creatures effortlessly solve the seemingly insoluble problem of longitude.
متن کاملAnimal Navigation: Memories of Home
Sea turtles memorize the magnetic coordinates of their natal beach, returning to that combination of parameters to lay eggs decades later. The intervening secular (year-to-year) variation in field intensity and inclination can lead the nesting females to a series of predictably different beaches.
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ژورنال
عنوان ژورنال: Current Biology
سال: 2004
ISSN: 0960-9822
DOI: 10.1016/j.cub.2004.02.049