Wednesday, September 26

Turtles Magnetic Fields

Turtles Magnetic Fields
New research suggests that sea turtles use a relatively simple navigation system involving the Earth's magnetic field to return to the same beaches to lay their eggs, even after venturing across thousands of miles of open ocean without visible landmarks.

its seems like they bring along compass or GPRS navigations gear along when they travel around the world...

They found that turtles find their way back to the same beaches, independent of ocean currents or other impediments. It is almost as if they were naturally equipped with a compass pointing devices towards the beach still in question.

Do You Knows;

''they can correct any deflection they are subject to; transport by boat or ocean currents... but unlike human navigators, they are not able to correct for ocean drift in plotting their course''

So the movements recorded by the satellite are a combination of deliberate action by the turtles and the effect of currents. It appears that the turtles navigation system is relatively simple and may cause them to be wander at sea for long periods during adverse ocean conditions.

One turtle released 250 km from its egg-laying site can traveled more than 3500 km in two months before returning back....

The researchers confirmed the role of Earth's magnetic field on turtle navigation by using a powerful magnet to disrupt the turtle's orientation. Turtle navigation is not as good... when this field is disturbed, even with the magnet attached to their cranium, but turtles were still able to find their way home. Isn't it unbelieveables when we juz seeing to the capability of this creatures!!!

''turtles may also use their sense of smell like certain sea birds or homing pigeons, stated the release, but this hypothesis remains to be proven''

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