Interesting article I stumbled upon. Close to Peru, a 5th century mummy, 'Maria' was found. She has only 3 fingers and an alien-like shaped head. Researchers from St Petersburg say that Maria, , has a different anatomical structure to humans...
"The tissue has biological nature and their chemical composition indicated that they are humans. Their DNA features 23 pairs of chromosomes, just like we have. All the four of them are males, each with a Y-chromosome. They appear human but they are not. Their anatomic structure is different."
Dr Korotkov said: "Maria and Vavita could have been representatives of a certain race which had possibly reached a stage of advancement much earlier than we did. Maybe thousands of years earlier."
Source: https://www.rt.com/news/421098-peru-alien-mummy-dna/