Scientists say 'sharks' use Earth's magnetic field to navigate


  21 กรกฎาคม 2021
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Scientists have found that sharks use Earth's magnetic field as GPS navigation, allowing them to swim great distances in the ocean.

GPS, or Global Positioning System, is a เว็บสล็อตxotechnology that allows users to locate different locations on the planet. GPS can give users the direction from one point to another in real time.

Researchers conducted experiments with small sharks in a marine laboratory. They confirmed the theory that sharks use magnetic fields to guide their journey. This ability is seen in other sea creatures as well.

The study was published in the May issue of the journal Current Biology.

Bryan Keller, marine life expert One of the researchers in the study said: This study explains that sharks are able to travel at sea and feed actively. including how to reproduce and give birth

Keller went on to say that Scientists know sharks can react to magnetic fields. But never knew they used magnetic fields to navigate. The researchers questioned how sharks could travel 20,000 kilometers over many years in the open ocean with not many landmarks and get back to where they started.

in finding answers to such matters. Scientists at Florida State University have studied hammerhead sharks. living both on the coast of the United States and return to the same waters every year

Bryan Keller, a researcher on the study, said the study would be able to tell which species of sharks needed protection. This year's study found that shark numbers declined by more than 70 percent between 1970 and 2018.

The researchers said Other sharks may also use the Earth's magnetic field, as well as hammerhead sharks. This includes large sharks that travel across the ocean.

However, Robert Hueter, a scientist at the Mote Marine Laboratory & Aquarium Hueter who was not involved in the study, said more study is needed to find out how sharks use magnetic fields to know their location. Studies are also needed to see if larger sharks traveling longer distances use a similar system to find their direction.