[NatureNS] (ozone holes); RF detection

References: <BF47879A.8BBF%jimwolford@eastlink.ca> <45522B79.9040305@glinx.com> <20f004aace70ad0b15d98cac8fe03d35@dal.ca>
From: c.majka@ns.sympatico.ca
Date: Fri, 10 Nov 2006 09:27:49 -0400
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Hi Steve,

On 9-Nov-06, at 7:18 PM, Steve Shaw wrote:

>    Having said this, it is certainly not outlandish to suggest that  
> some other form of energy might be the proper stimulus, and that  
> convention has got it wrong, because this has happened  
> historically.   The classic case is not far from your idea, of  
> electroreception (detection of very weak, water-born electric  
> currents).  This is a sense completely foreign to us, that some  
> fish species use for signalling, object and prey detection.  The  
> electroreceptor sense cells historically went through a sequence of  
> being misinterpreted as to their function, at one point being  
> suggested to be temperature receptors for instance.

Some fish (American eels, for instance) are also able to detect  
geomagnetic anomalies and are correspondingly able to navigate along  
the sea-bottom using geo-magnetic "topography", a mechanism which  
assists them in their navigation back from the Sargasso Sea.

Cheers,

Chris

_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._. 
_.
Christopher Majka - Nova Scotia Museum of Natural History
1747 Summer Street, Halifax, Nova Scotia, Canada  B3H 3A6
(902) 424-6435   Email <c.majka@ns.sympatico.ca>
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._. 
_.


--Apple-Mail-68-174476178
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<HTML><BODY style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; =
-khtml-line-break: after-white-space; ">Hi Steve,<DIV><BR><DIV><DIV>On =
9-Nov-06, at 7:18 PM, Steve Shaw wrote:</DIV><BR =
class=3D"Apple-interchange-newline"><BLOCKQUOTE type=3D"cite"><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><SPAN class=3D"Apple-converted-space">=A0 =
=A0</SPAN>Having said this, it is certainly not outlandish to suggest =
that some other form of energy might be the proper stimulus, and that =
convention has got it wrong, because this has happened historically. =
<SPAN class=3D"Apple-converted-space">=A0 </SPAN>The classic case is not =
far from your idea, of electroreception (detection of very weak, =
water-born electric currents).<SPAN class=3D"Apple-converted-space">=A0 =
</SPAN>This is a sense completely foreign to us, that some fish species =
use for signalling, object and prey detection.<SPAN =
class=3D"Apple-converted-space">=A0 </SPAN>The electroreceptor sense =
cells historically went through a sequence of being misinterpreted as to =
their function, at one point being suggested to be temperature receptors =
for instance.</DIV></BLOCKQUOTE><BR></DIV><DIV>Some fish (American eels, =
for instance) are also able to detect geomagnetic anomalies and are =
correspondingly able to navigate along the sea-bottom using geo-magnetic =
"topography", a mechanism which assists them in their navigation back =
from the Sargasso Sea.</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>Cheers,</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>Chris</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV> <P style=3D"margin: 0.0px =
0.0px 0.0px 0.0px"><FONT face=3D"Times" size=3D"3" style=3D"font: 12.0px =
Times">_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._=
._._._.</FONT></P> <P style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><FONT =
face=3D"Times" size=3D"3" style=3D"font: 12.0px Times">Christopher Majka =
- Nova Scotia Museum of Natural History</FONT></P> <P style=3D"margin: =
0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Times" size=3D"3" style=3D"font: =
12.0px Times">1747 Summer Street, Halifax, Nova Scotia, Canada<SPAN =
class=3D"Apple-converted-space">=A0 </SPAN>B3H 3A6</FONT></P> <P =
style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Times" size=3D"3" =
style=3D"font: 12.0px Times">(902) 424-6435 <SPAN =
class=3D"Apple-converted-space">=A0 </SPAN>Email &lt;<A =
href=3D"mailto:c.majka@ns.sympatico.ca">c.majka@ns.sympatico.ca</A>&gt;</F=
ONT></P> <P style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Times"=
 size=3D"3" style=3D"font: 12.0px =
Times">_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._=
._._._.</FONT></P>  </DIV><BR></DIV></BODY></HTML>=

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