Jimmy Senda was walking along Racine Beach in Wisconsin earlier this month when he spotted the ‘organ’, which had been placed inside of a square package and wrapped in aluminium foil.

Speaking to local media, Jimmy said he just wanted to know what it was and thought the answer might lie inside.

He told Fox6 News: “Curiosity got to me, so I popped it open and it looked like a chicken breast.

“It took a little bit for it to really (register) of what was going on; it was a brain.”

Jimmy said he also found a bunch of flowers alongside it, as well as a piece of paper with what appeared to be Mandarin writing on it.

To double-check his theory he then went over to a group of workmen nearby and said they also believed it to be a brain.

He went on: “I don’t really know how to explain it. I was just like, ‘What is this?’”

The strange find had cops stumped, with officers also saying that it looked like a brain.

Speaking to Fox, police revealed that the brain is not believed to belong to a human, but this would not be confirmed until a proper examination had been carried out by the local Medical Examiner’s office.