5 Animals That Have Magnetic Powers!

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Watching a small piece of metal do jumps, flips and run non-stop on a table, apparently all by itself, is amazing. What’s more interesting, however, is that someone is holding a magnet just below the table. This is one of the most beloved games of science-loving teens and probably a popular prank too (for the young ones, at least).

You must have heard by now that birds use the magnetic field of Earth to aid in navigation. What you may not know, however, is that there are many other creatures who have a trace of magnetism in them. Let’s take a closer look at some of the more interesting examples:


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Sea Turtle:

Sea turtles are such cute little creatures that you (if you didn’t know it already) wouldn’t have thought of it being such a science lover.

sea turtle
Credits: IM Photo/Shutterstock

As there are only a few landmarks in the sea, most of which are far from one another, female sea turtles use the magnetic field of the Earth to travel over long distances. They completely rely on the magnetic signatures along the coast to lay eggs at their birthplace and ensure that future generations of sea turtles find their home.

Also Read: How Do Aquatic Animals Navigate Underwater?

Magnetotactic Bacteria:

Now, who would have ever thought of a bacterium having magnetic properties?

bacteria

These small organisms use magnetic crystals to align themselves within the magnetic field of the Earth, just like a compass. The bacteria rotates itself according to the magnetic field of the Earth, although there is no clear reason why they do this.

It is interesting to note that there is a theory claiming that a meteorite from Mars that hit the Earth many years ago had fossilized magnetotactic bacteria embedded in it, but this theory has been highly challenged.

Also Read: Why Do We Have Magnets In Our Brains?

Trout:

Many would wonder what this fish is, but you’ve almost certainly had it on your dinner plate at some point. Who knew that this type of fish had magnetic properties?

trout
Credits: Jiri Hera/Shutterstock

Trout is the name given to a number of species of freshwater fish. Trout are also closely related to salmon and char. Almost 1 out of every 10,000 cells in the lining of the trout’s nose contain very strong magnetic material that responds whenever it detects a change in the external magnetic field.

Imagine what would it be like if we had magnets in our noses!

Fruit Fly:

Fruit flies are the nasty little flies that hover around unrefrigerated food that is left out in the open.

fruit fly
Credits: sarawuth wannasathit /Shutterstock

Now, while most people find them nasty and irritating, fruit flies have tremendous magnetic abilities. Drosophila melanogaster, a laboratory fly, possesses a cryptochrome that is able to detect external magnetic fields. In a recent study, it was shown that when a protein found in a human’s retina is placed into a fruit fly, it is also able to detect external magnetic fields.

Pigeons:

The most commonly known creatures that use the magnetic field of Earth for the purpose of navigation are pigeons. While most people find them annoying and potentially unhealthy, you can’t deny that they possess some serious magnetic abilities.

pigeons
Credits: pongnathee kluaythong/Shutterstock

Homing pigeons have iron spheres in the hair cells of the inner ear, which facilitates detection and thus navigation by using the magnetic field of Earth. Therefore, if Earth ever loses its magnetic field (which is quite impossible), then these birds would have a really hard time finding places they needed to go.

There are a number of metallic materials found in the Earth’s crust, mantle, and core, which is why Earth has a magnetic field.

In my opinion, it’s high time that humans also developed this unique ability of detecting and creating magnetic fields. After all, who doesn’t envy Magneto’s powers?

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References (click to expand)
  1. C SIGNATURE —. The Magnetic Sense of Animals. The University of Illinois Urbana-Champaign
  2. Cain, S. D. (2005, June 1). Magnetic Orientation and Navigation in Marine Turtles, Lobsters, and Molluscs: Concepts and Conundrums. Integrative and Comparative Biology. Oxford University Press (OUP).
  3. Neuroethology: Magnetic information in animal orientation. The University of Illinois Urbana-Champaign
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About the Author

Ashish is a Science graduate (Bachelor of Science) from Punjabi University (India). He spearheads the content and editorial wing of ScienceABC and manages its official Youtube channel. He’s a Harry Potter fan and tries, in vain, to use spells and charms (Accio! [insert object name]) in real life to get things done. He totally gets why JRR Tolkien would create, from scratch, a language spoken by elves, and tries to bring the same passion in everything he does. A big admirer of Richard Feynman and Nikola Tesla, he obsesses over how thoroughly science dictates every aspect of life… in this universe, at least.

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