منابع مشابه
Magnetoreception in animals
mals can detect Earth’s magnetic field has traveled the path from ridicule to well-established fact in little more than one generation. Dozens of experiments have now shown that diverse animal species, ranging from bees to salamanders to sea turtles to birds, have internal compasses. Some species use their compasses to navigate entire oceans, others to find better mud just a few inches away. Ce...
متن کاملThe neurobiology of magnetoreception in vertebrate animals.
Diverse vertebrate animals can sense the earth's magnetic field, but little is known about the physiological mechanisms that underlie this sensory ability. Three major hypotheses of magnetic-field detection have been proposed. Electrosensitive marine fish might sense the geomagnetic field through electromagnetic induction, although definitive evidence that such fish actually do so has not yet b...
متن کاملMagnetoreception
Few subjects in animal behavior have more exotic mystery than magnetic-field sensitivity. A force we cannot sense, generated by events no one completely understands, creates field lines that pass through our bodies without any evident effect on us or on them. It is an energy felt as much by migrating lobsters on the sea floor as by ocean-crossing birds thousands of meters overhead, transduced i...
متن کاملMagnetoreception and Electromagnetic Field Effects: Sensory Perception of the Geomagnetic Field in Animals and Humans
This chapter reviews numerous discoveries that have been made during the past 15 years concerning the ability of living organisms to respond to the geomagnetic field. These include (1) the magnetotactic response of bacteria and protozoans, (2) magnetic effects on homing and navigational behavior by migrating animals, (3) the discovery of magnetically influenced signals in nerve fibers from the ...
متن کاملMagnetoreception in eusocial insects: an update.
Behavioural experiments for magnetoreception in eusocial insects in the last decade are reviewed. Ants and bees use the geomagnetic field to orient and navigate in areas around their nests and along migratory paths. Bees show sensitivity to small changes in magnetic fields in conditioning experiments and when exiting the hive. For the first time, the magnetic properties of the nanoparticles fou...
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ژورنال
عنوان ژورنال: Physics Today
سال: 2008
ISSN: 0031-9228,1945-0699
DOI: 10.1063/1.2897947