Archeologists recently discovered a peculiar creature in a carefully cut hidden grave and it is certainly not a human.

The digging took three weeks to complete in a small island of Chapelle Dom Hue, after which a grave hidden in the soil was discovered. The grave contained the remains of a medieval porpoise and its history is yet to be known.

Archeologist Philip de Jersey told The Guardian, “It’s very peculiar; I don’t know what to make of it. Why go to the trouble of burying a porpoise in what looks like a grave?”

What’s more unusual was the burying of the animal. Instead of seeming like the animal was just disposed, it looked more as if the animal was laid to rest. As per the Chinese tradition, the porpoise’s body was aligned from east to west with a very careful digging of the grave.

Archeologists believe that the grave of this creature was alongside the graves of other monks sometime in the 14th century, as the island is thought to be a religious retreat for monks seeking refuge, reported Science Alert.

However, there is also a possibility that the animal was killed for food as these creatures were eaten back in those times. Yet, it still didn’t make sense why the porpoise was carefully dug up in soil instead of just disposing off the body in the sea that surrounds the island.

“If we were in a church and we found something like this, based on the shape, we would think it was a grave cut. That is what puzzles me. If they had eaten it or killed it for the blubber, why take the trouble to bury it?” de Jersey expressed.

Jersey claimed that this discovery was the most bizarre one he ever came across in his entire career. “The dolphin has a strong significance in Christianity but I've not come across anything like this before. It's the slightly wacky kind of thing that you might get in the Iron Age but not in medieval times.”

Moreover, the remains of the creature were taken back to a laboratory where it will be further studied about.