This is probably a hoax but has not been proven to be one yet:

http://www.snopes.com/alien-mummy-peru/

... Finally, Gaia.com (formerly known as Gaiam TV) web site has a long history of providing a platform for false and spurious pseudo-science, conspiracy theories, and paranormal claims. The company charges $95.40 per year for unlimited access to videos about remote viewing, contact with angels, alien abduction, crop circles, and the like.

It remains to be established whether the Nazca “mummy” is actually an excavated corpse or simply a hoax, what its origins are, and how its apparent deformities came about. But we are willing to say with certainty that it will not succeed where thousands of previous “discoveries” have failed, and present definitive, scientifically verifiable proof of alien life.