You know the five ordinary ones: sight, hearing, taste, touch, and smell.
Well, I can say from experience that there’s at least one more. I call it the EM sense, or “electromagnetic”. It’s used by dowsers. Wikipedia claims,
There is no accepted scientific rationale behind dowsing, and there is no scientific evidence that it is effective.
On the other hand, I actually saw it done. About 15-20 years ago, at a Dept. of Energy site. There were some very old pipes, about 2″ in diameter, that ran underground between two buildings. They needed to be dug up. But they were very old, and documentation was scarce. Not only was management unsure of their precise path, they couldn’t even tell us if they’d contained radioactive material.
That’s why I was there. My job was to survey both the soil as it was brought up (in case there had been leaks) and the pipes themselves when we got to them.
I was outside with the crew of laborers. They were looking at a lot of hand-digging. Powered equipment could easily break the pipes. While we were talking about it, a young worker said the pipes would be easy to find, if they were there.
His (I think) grandmother was a dowser. She’d taught him the skill, and apparently he had some talent at it. So he set off to pinpoint the pipes’ location.
This guy took two slender metal rods in hand. He put his upper arms to his side and held his forearms out in front of him, straight and parallel. He started walking toward where we suspected the pipes were, and after a few feet his forearms began bending inward. A bit more and then they were crossed against his chest.
He took a can of spray paint and put an X in the grass, then walked down about ten feet and repeated the procedure. He then motioned toward the line between the two Xs and said, “Here they are.”
Of course, when we dug the things up he was waaaay off. Kidding! The pipes were right where he indicated, about three feet down.
Wikipedia says there’s no scientific evidence of dowsing. Well, it’s true that this wasn’t a controlled, repeated experiment. On the other hand…how did he find the pipes?! Sight, smell, hearing…you tell me. The kid was humble and matter-of-fact about the whole thing. He said that for him, true dowsing stunts like finding deep water were next-to- impossible. But solid metal running a few feet underground? He made it look like child’s play.
So I believe that guy used his nervous system as an EM receiver with the rods as antennae. (Yes, I know it’s “antennas” in radio and televison, but this here was biology.) You believe what you want, but I promise this is no tall tale. I saw what I saw and he did what he did.