The Real Sixth Sense--Measurable and Detectable

The Platypus has a special sense that humans don't have. They detect objects with their bills through the means of low grade electrical impulses that objects give off:

[link to en.wikipedia.org]

It's called Electroreception. It's limited to aquatic creatures.

What's interesting to me about this is the fact that it really underscores the fact that we give off electrical signals to our environment all the time. All things do.

Some creatures with electroreception can even actively generate electrical fields that act somewhat in the same way as a bat's echo-location. Except, of course, without sound.

This explains kirlian photography:

[link to en.wikipedia.org]

Which I think is an amazing and interesting phenomenon. The photography changes the electrical signals that the platypus can read with its sixth sense into one of the senses we have--vision.

So when someone says they have a sixth sense, now you can ask them if they electrolocate.