Apparently when the mummified specimen was discovered, some had suggested the possibility it was an alien that had somehow landed on Earth, though the researchers involved never suggested this otherworldly origin.
Now, DNA and other tests suggest the individual was a human and was 6 to 8 years of age when he or she died. Even so, the remains were just 6 inches (15 centimeters) long. [See Images of the Alien-Looking Human Remains]
"While the jury is out regarding the mutations that cause the deformity, and there is a real discrepancy in how we account for the apparent age of the bones … every nucleotide I've been able to look at is human," researcher Garry Nolan, professor of microbiology and immunology at Stanford School of Medicine, told LiveScience. "I've only scratched the surface in the analysis. But there is nothing that jumps out so far as to scream 'nonhuman.'"