31 Jul '12, 8pm

Animal ‘Compass Cells’ Isolated (Probably): German researchers have developed a method for identifying potential...

Animal ‘Compass Cells’ Isolated (Probably): German researchers have developed a method for identifying potential...

During the past half-century, it’s become increasingly clear that some animals have built-in magnetic compasses. The evidence has suggested that some cells contain magnetite particles, but it has been difficult to tell a magnetic particle from run-of-the-mill non-magnetic biological iron compounds. And how the particles might transmit magnetic field information to the nervous system was also a mystery. Now researchers at Ludwig Maximilians University Munich (LMU) report in Proceedings of the National Academy of Science that they have developed a method for isolating magnetic cells (which turn out to be very rare) and measuring their sensitivity . The LMU group focused on trout, which (like their close cousins, salmon) have notable navigational talents. Earlier experiments had found iron particles in the trout’s olfactory nerves, as well as in the lateral line (the long str...

Full article: http://spectrum.ieee.org/tech-talk/at-work/test-and-measu...

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@fogus This old crufty thing probably doesn't r...

chadfowler.com 30 Jul '12, 3pm

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compass-travel.co.uk 08 Aug '12, 10am

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straitstimes.com 01 Aug '12, 12pm

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compass-travel.co.uk 09 Aug '12, 9pm

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