Archaeologists in Mexico have unearthed 25 alien-like skulls from a 1000-year-old cemetery which is said to be dating back between 945 AD to 1308 AD.
The unearthed skulls, which were later identified as human skulls, were said to be conical in shape. The Mexican cemetery from where the skulls were found was first discovered in 1999 by people living in Onavas village.
"This was an Hispanic cemetery with 25 skulls, and 13 of them have deformed heads," Cristina Garcia Moreno, who was also part of the excavation project with Arizona State University, told ABC News.
"We don't know why this population specifically deformed their heads," she added.
The initial observation that suggested the findings to be human have raised many eyebrows. But the scientists who examined the exhumed skulls said that the findings of skulls warped into different shapes are not an uncommon in Central America.
"Cranial deformation has been used by different societies in the world as a ritual practice, or for distinction of status within a group or to distinguish between social groups," said Moreno.
She further said, "The reason why these individuals at El Cementerio deformed their skulls is still unknown."
Among the 25 exhumed skulls, a large number was identified as the remnants of kids aged between five months and 16 years. It was said that in ancient years skull deformation was done by wedging the person's head between two wooden blocks to pressurize it into forming a conical shape. People from the US Northwest and the Choctaw of the southeast practiced these rituals on a large scale, according to Time News Feed.
"The most common comment I have read from people that see the pictures of cranial deformation has been that they think that those people were 'aliens'. I could say that some say that as a joke, but the interesting thing is that some do think so. Obviously we are talking about human beings, not of aliens," said Moreno.