Geomagnetic map used in sea-turtle navigation

Article Abstract:

The green sea turtles (Chelonia mydas) capability to navigate to a specific destination is discussed. These migratory animals have their own equivalent of a global positioning system, with the help of which they acquire the ability to exploit magnetic information in a more complex way than hatchlings, using it as a component of classic navigational map.

Environmental aspects, Green turtle, Green sea turtles

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True navigation and magnetic maps in spiny lobsters

Article Abstract:

Researchers at the University of North Carolina at Chapel Hill have found that the spiny lobster is capable of true navigation, that is, finding its way home despite a lack of apparent external cues. Further experiments indiate that the lobster uses magnetic fields to navigate.

Animal behavior, Animal behaviour, Animal navigation

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The lobster navigators

Article Abstract:

Spiny lobsters evidently use magnetic cues to guide their 200 km migrations in the Gulf of Mexico and Caribbean. Even when they are captured and transported up to 37 km away, they are able to set course for home when released.

Gulf of Mexico, Caribbean Sea

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