Sea Turtles' Migration Mystery is 'Solved'
source: http://www.bbc.co.uk/news/science-environment-12559705
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- rodstradamus
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Until now, how species such as loggerhead sea turtles manage to migrate thousands of miles across oceans with no visual landmarks has been a mystery.
Now researchers from the University of North Carolina believe they have found the answer.
Loggerhead sea turtles appear to be able to determine their longitude using two sets of magnetic cues.
It is the first time this ability has been shown in any migratory animal.
This research is published in the journal Current Biology.
Although several species of turtles are known to use magnetic cues to determine latitude, it was believed that this wasn't possible for longitude.
However, the loggerhead turtles have managed to surprise researchers by developing a method that involves using the strength and angle of the Earth's magnetic field.
Nathan Putman, the lead author of the research emphasised that "the most difficult part of open-sea navigation is determining longitude or east-west position".
"It took human navigators centuries to figure out how to determine longitude on their long-distance voyages".
Loggerhead hatchlings, however, are able to mange this feat as soon as they reach the sea from their nests.
On reaching the sea, the hatchlings are able to establish the correct course to the open ocean.
The young loggerheads then spend several years successfully navigating complex migratory routes over thousands of miles of ocean.
more at link...
The realm of our reality: the senses of smell, sight, hearing, touch and taste are so narrow, yet so many think they got it all figured out. Check out the Electric Universe.
Now researchers from the University of North Carolina believe they have found the answer.
Loggerhead sea turtles appear to be able to determine their longitude using two sets of magnetic cues.
It is the first time this ability has been shown in any migratory animal.
This research is published in the journal Current Biology.
Although several species of turtles are known to use magnetic cues to determine latitude, it was believed that this wasn't possible for longitude.
However, the loggerhead turtles have managed to surprise researchers by developing a method that involves using the strength and angle of the Earth's magnetic field.
Nathan Putman, the lead author of the research emphasised that "the most difficult part of open-sea navigation is determining longitude or east-west position".
"It took human navigators centuries to figure out how to determine longitude on their long-distance voyages".
Loggerhead hatchlings, however, are able to mange this feat as soon as they reach the sea from their nests.
On reaching the sea, the hatchlings are able to establish the correct course to the open ocean.
The young loggerheads then spend several years successfully navigating complex migratory routes over thousands of miles of ocean.
more at link...
The realm of our reality: the senses of smell, sight, hearing, touch and taste are so narrow, yet so many think they got it all figured out. Check out the Electric Universe.
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therealpixie
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And as the fluctuations in the magnetic field intensify with the shifts in the magnetic pole, it is my opinion that it is strong enough to, oh say, knock hundreds of birds out of the sea, cause large numbers of fish and sea mammals to wash up on shores, or http://www.dailymail.co.uk/sciencetech/article-1344899/Shift-magnetic-north-pole...
- 1 year ago
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therealpixie
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rodstradamus
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therealpixie:
It could be the sun, but most likely it was HAARP or some other similar installation that killed the birds.
- 1 year ago
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rodstradamus
