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Index of Subjects --Apple-Mail-68-174476178 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed 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 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=ISO-8859-1 <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 <<A = href=3D"mailto:c.majka@ns.sympatico.ca">c.majka@ns.sympatico.ca</A>></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>= --Apple-Mail-68-174476178--
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Index of Subjects