Study finds that dolphins may be able to detect magnetic fields

A new study suggests that dolphins are attracted to magnets and can detect magnetic fields in objects.
Researchers at the University of Rennes 1 and the University Institute of France observed how six bottleneck dolphins responded to both magnetized and demagnetized barrels. The study, published in The Science of Nature, found that dolphins may be magnetosensitive — a.k.a., they can sense Earth's magnetic field.
Dolphins approached the device with shorter latency when it contained a strongly magnetized neodymium block compared to a control demagnetized block that was identical in form and density and therefore undistinguishable with echolocation. We conclude that dolphins are able to discriminate the two stimuli on the basis of their magnetic properties, a prerequisite for magnetoreception-based navigation. [The Science of Nature]
The researchers noted in the study that more research is needed to determine "a more precise and conclusive result" about the study's implications. Dolphins wouldn't be the first animals to align themselves with Earth's magnetic pull, though — previous studies have suggested that dogs align themselves with Earth's magnetic field to poop.
Subscribe to The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.

Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
"Dolphins are able to discriminate between objects based on their magnetic properties, which is a prerequisite for magnetoreception-based navigation," Dorothee Kremers, lead author of the study, said in a statement. "Our results provide new, experimentally obtained evidence that cetaceans have a magnetic sense, and should therefore be added to the list of magnetosensitive species."
Sign up for Today's Best Articles in your inbox
A free daily email with the biggest news stories of the day – and the best features from TheWeek.com
Meghan DeMaria is a staff writer at TheWeek.com. She has previously worked for USA Today and Marie Claire.
-
Marbled tea eggs recipe
The Week Recommends With a beautiful exterior, these eggs are also marked by their soft yolk
By The Week UK Published
-
The Washington Post: kowtowing to Trump?
Talking Point The newspaper's opinion editor has handed in his notice following edict from Jeff Bezos
By The Week UK Published
-
Gene Hackman: the death of a Hollywood legend
The French Connection actor had an extraordinary gift for making characters believable
By The Week UK Published
-
Pharaoh's tomb discovered for first time in 100 years
Speed Read This is the first burial chamber of a pharaoh unearthed since Tutankhamun in 1922
By Peter Weber, The Week US Published
-
Scientists report optimal method to boil an egg
Speed Read It takes two temperatures of water to achieve and no fancy gadgets
By Peter Weber, The Week US Published
-
Europe records big leap in renewable energy
Speed Read Solar power overtook coal for the first time
By Peter Weber, The Week US Published
-
Blue Origin conducts 1st test flight of massive rocket
Speed Read The Jeff Bezos-founded space company conducted a mostly successful test flight of its 320-foot-tall New Glenn rocket
By Peter Weber, The Week US Published
-
US won its war on 'murder hornets,' officials say
Speed Read The announcement comes five years after the hornets were first spotted in the US
By Peter Weber, The Week US Published
-
Dark energy data suggest Einstein was right
Speed Read Albert Einstein's 1915 theory of general relativity has been proven correct, according to data collected by the Dark Energy Spectroscopic Instrument
By Peter Weber, The Week US Published
-
New DNA tests of Pompeii dead upend popular stories
Speed Read An analysis of skeletal remains reveals that some Mount Vesuvius victims have been wrongly identified
By Peter Weber, The Week US Published
-
NASA's Europa Clipper blasts off, seeking an ocean
Speed Read The ship is headed toward Jupiter on a yearslong journey
By Peter Weber, The Week US Published