Magnetoreception?

I have often pondered light and the workings of the human eye.

Last month I found the following link, and was intrigued:

Humans Might Have a Magnetic 'Sixth Sense'

An Exceptional Friend

"Our perfect companions never have fewer than four feet." ~Colette

"A boy can learn a lot from a dog: obedience, loyalty, and the importance of turning around three times before lying down." ~ Robert Benchley (1889 - 1945)

“Until one has loved an animal, a part of one’s soul remains unawakened.” ~ Anatole France

"I can imagine the anxiety Peter Pan felt when he lost his shadow." ~Angela Williams

“An animal’s eyes have the power to speak a great language.” ~ Martin Buber

"A heartbeat at my feet." ~ Edith Wharton

In Memory of Corgan
May 1997 - June 2011