Archaeologists have uncovered what is believed to be the first known porpoise burial traced back to the Medieval times, around the 14th century.
The find was made earlier this month during the excavation of a monastic retreat on the island of Guernsey.
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The team reportedly saw the plot and assumed it was evidence of a human burial but they were eventually surprised to discover the interred remains actually belonged to a porpoise.
One of the team members can be heard speaking about the find in a field video saying: "In 35 years of digging one of the strangest and most bizarre things I've ever come across."
Still marvelling at the find, the archaeologist eventually said what we're all thinking: "Why go to the trouble of burying a porpoise in what looks like a grave?"
A few theories about the animal have since emerged.
One involves the possibility that the mammal had been buried to hide or preserve it with salt to eat later. Another theory suggests it may have been part of a ceremony held by the monks that lived on the island.
After analysing the bones further the researchers hope to learn more about the animal.