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Scientists Solve Trout Navigation Riddle


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#1    skookum

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Posted 11 July 2012 - 09:12 AM

Quote

Trout have cells in their noses that act like miniature compasses to help them navigate, a study has shown.

The cells, which are believed to exist in other animals, contain iron-rich deposits of a magnetic material called magnetite.



http://news.sky.com/...vigation-riddle

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#2    lightly

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Posted 11 July 2012 - 11:14 AM

A study was done that showed people have magnetic deposits in our brains  ... right behind our noses.

"follow your nose"

Important:  The above may contain errors, inaccuracies, omissions, and other limitations.

#3    Taun

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Posted 11 July 2012 - 11:44 AM

It must be pretty easy for a trout...

most streams aren't that wide and it's either upstream or downstream...


#4    Junior Chubb

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Posted 12 July 2012 - 11:45 AM

Its a shame that if we did ever have this kind of ability that the lack of need for it over time has seen it be eroded away. Orienteering would be a lot easier if we instinctively knew which way north was.

View PostTaun, on 11 July 2012 - 11:44 AM, said:

It must be pretty easy for a trout...

most streams aren't that wide and it's either upstream or downstream...

You are spot on Taun (once they are in fresh water :) ), but the difficult part for Trout is finding the estuary of the river they are looking for, that is when the navigation factor really comes into play (finding the river from the sea).

I've flown from one side of this galaxy to the other. I've seen a lot of strange stuff, but I've never seen anything to show me where the hell Helen of Annoy has been for the past couple of months.

#5    pallidin

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Posted 12 July 2012 - 02:00 PM

I wonder of birds around the LHC collider go around in circles.  :)



#6    Junior Chubb

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Posted 12 July 2012 - 03:12 PM

View Postpallidin, on 12 July 2012 - 02:00 PM, said:

I wonder of birds around the LHC collider go around in circles.  :)

Until they collide?

I've flown from one side of this galaxy to the other. I've seen a lot of strange stuff, but I've never seen anything to show me where the hell Helen of Annoy has been for the past couple of months.

#7    jimbur

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Posted 12 July 2012 - 06:32 PM

View PostJunior Chubb, on 12 July 2012 - 03:12 PM, said:

Until they collide?

View PostJunior Chubb, on 12 July 2012 - 03:12 PM, said:

Until they collide?

Ahh. the elusive bird particle.

Edited by jimbur, 12 July 2012 - 06:33 PM.

Jim

#8    slowfade

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Posted 12 July 2012 - 06:33 PM

Fascinating, that explains a lot! Thanks for posting :yes:

"The opposite of love is not hate, it's indifference
The opposite of art is not ugliness, it's indifference
The opposite of faith is not heresy, it's indifference
And the opposite of life is not death, it's indifference"
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#9    csspwns

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Posted 13 July 2012 - 02:52 AM

if tat were so then fish hooks would have magnets and make catching fish super easy

but the magnet would rust sooo..


#10    lightly

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Posted 16 July 2012 - 11:19 PM

Some bacteria have built in compasses too...

http://www.scienceda...81216201412.htm

http://www.nature.co...ses-to-15669190

Important:  The above may contain errors, inaccuracies, omissions, and other limitations.

#11    Super-Fly

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Posted 18 July 2012 - 01:53 AM

not much good if there in a reservoir lmao

interesting none the less.

Thanks.

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