Magnetoreception

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Magnetoreception

Gerry Atkinson
Magnetism Blog
Gateways 

In the late 1700's, a German doctor named Franz Anton Mesmer claimed that all living organisms contained magnetic fluids, and if these fluids were disturbed or became unbalanced disease could set in. This theory was quickly debunked and disproved time and time again, but the idea of Magnetoreception has gradually become more and more popular over the years.

Magnetoreception is a sense that as an organism has which allows it to detect magnetic fields and currents. It helps animals like blind mole rights, migrating birds, salmon, and glass eel to orient themselves and go in the proper direction. The glass eel for example travels thousands of miles to get from place to place in incredibly dark and murky waters. It would be almost impossible for them to get a sense of direction underwater, so scientists believed they used some form of Magnetoreception to get around. To test this theory scientists and rescuers captured around 50 glass eels and simulated certain tides that the eels react to. Researchers found that eels moved in certain directions depending on whether or not the simulated tide was going in or out. For example, when the tide flowed out, the eels generally faced south, but when it went in, they had no consistent orientation.

How these animals use this magical sense of direction is still unknown to scientists, and has been a mystery for as long as this idea has been around. The issues that arise due to these animals Magnetoreception is that relocating them could potentially disorient them entirely. The glass eels are an endangered species but scientists warn against moving them to a safer environment as there whole system could be interrupted. The idea is that their whole system revolves around their specific environment and would be potentially vulnerable if they were moved.

Magnetoreception hasn't been a widely known idea for very long, so in an effort to protect animals with this system awareness has to be raised. People have to know not to relocate animals with this, and learn how to properly take care of them if necessary. The best thing we can do is get the word out, and teach people all about this in an effort to save all of these cute little animals.
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https://www.economist.com/the-economist-explains/2018/09/25/how-some-animals-use-the-earths-magnetic-field-to-navigate

https://www.nytimes.com/2017/06/09/science/glass-eels-magnetism-navigation.html

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