Robots discover secret tunnel maze hiding the skeletons of three 'sacrifices' under 3,000 year old temple

The astonishing find was made below the Chavin de Huantar temple

Tiny robots have made an astonishing discovery, with an elaborate maze of tunnels found underneath a 3,000 year old temple in Peru.

The surprising find was made by American and Peruvian archaeologists below the Chavin de Huantar temple.

Robots named Chavin Rover used cameras and lights to uncover the tunnels - as well as three skeletons, believed to have been killed as sacrifices.

This religious and administrative centre was built 3,000 years ago in the Andean area of Peru, in the western Peruvian department of Ancash.

A small robot armed with micro cameras explored the complex network of tunnels 

Archaeologists have hailed the discovery as a massive breakthrough 

Footage shows a robot in action beneath the temple 

The complex tunnel network is thousands of years old 

The robots were designed by engineers of Stanford University.

They are small vehicles with cameras and a light system attached that are operated using remote control.

The robots on wheels were able to find ceramic fragments, tools and remains of human skeletons, according to the archaeological team.

On the temple complex of Chavin de Huantar a total of 35 interlinked underground tunnels have been identified, dating back between 1,200 and 200 years BC.

The discovery was made at the site where the Chavin de Huantar temple was built 

The remote controlled robots were developed in the US 

A total of 35 interlinked underground tunnels have been identified 

Expedition crew at the site of the tunnel discovery 

The director of the investigation project and archaeologist from Stanford University, John Rick, said: "We have found at least three people in one of the galleries.

"One of them is a small boy, the other one is a teenager and the other one is a young man, between 20 and 30 years old.

"Authorities and priests played with the architecture and carried out rituals with drugs, noise and light manipulation that pilgrims could not explain and made them believe the leaders of Chavin had higher powers."

Experts say items found in the tunnels give huge clues about the past 

It is believed that thanks to the use of the robots more tunnels could be discovered 

According to Rick, they believe the bodies might have been sacrifices as one of the skeletons was found face down.

Archaeologists have considered this discovery as one of the most important of the last 50 years.

The Gruesome Sacrifice Carvings of Cerro Sechín, 3,600-Year-Old Ceremonial Center of Peru

In 1600 B.C., there was no Internet, no television, and no printing press - how then could someone spread a message? For the ancient peoples of northern Peru, the answer was to carve reliefs into stone. Today, experts are not certain what message these ancient artists were trying to transmit at Cerro Sechín, however, the power of the images still resonates. Over 300 images at the site graphically depict (and even dramatize) human sacrifices and the gruesomeness of war. The scenes display a crushing victory by the warrior-priests over unknown enemies, many of whom are only represented as dismembered limbs.

There are several theories as to what the bas-relief images depict. Some say it is evidence an ancient study of anatomy, others say it is the depiction of a mythical battle among the gods. Taken together, it looks like the images show a procession of warriors making their way through the dismembered remains of ordinary people. This has led some people to believe the scene shows a historic battle while others think it depicts a crushed peasant uprising. In any event, one party decidedly defeated the other and the winners unleashed their vengeance on the losers without compassion, possibly part of a gruesome post-victory sacrificial ritual.

Monoliths at Cerro Sechin depicting warriors and prisoners, the latter are dismembered ( A. Davey / flickr ).

The level of violence is shocking. There are severed heads, arms, and legs; eyeballs taken from a skull and skewered; bleeding corpses; bones bleaching in the sun. What is striking is the high-degree of anatomical accuracy of the body parts, especially the internal organs such as the stomach, kidneys, esophagus, and intestines. Perhaps this level of insight was gained through scientific dissection but there can be little doubt that whoever the artists were, they had a great familiarity with dismembered bodies. They may have even had the pieces in front of them to look at while they carved.

The carving on the left depicts a stomach and intestines ( A. Davey / flickr ).

Cerro Sechín is situated on a granite hill in the Casma Valley, roughly 168 miles (270 km) north of Peru's capital city, Lima. The carvings of Cerro Sechín are just one part of the larger Sechin Complex, which covers some 300 to 400 acres (120 to 160 hectares) and includes the Sechin Alto and the Sechin Bajo. The Sechin Alto is a large building complex that served as a temple. It is the largest pre-Columbian monument in Peru. The Sechin Bajo is a large circular plaza that may be the oldest portion of the Sechin Complex. Experts believe that the area served as a gathering point for social and religious purposes.

The Sechín archeological site in the Casma Valley, Peru ( CC by SA 3.0 )

The archeological site was first discovered in 1937 by Julio C. Tello, a renowned Peruvian archeologist. The complex seems to have served as a public monument and ceremonial center. The Sechin river cuts through the complex and there is evidence of small-scale irrigation agriculture in the area. Its proximity to the ocean (the Pacific is 8 miles (13km) away) suggests that the inhabitants of the Sechin Complex had easy access to the coastal cities and marine goods.

Cerro Sechín stretches over 164,042 feet (50,000 meters) within the Sechin Complex. It is a "quadrangular three-tiered stepped platform flanked on each side by two smaller buildings" (Slovak, 2003). The monument was "constructed in several stages using conical adobes, or large sun-dried bricks with broad circular bases and tapered points, which were then set into clay mortar and plastered over to form wall surfaces" (Slovak, 2003).

Cerro Sechín, Peru ( A.Davey / flickr )

Little is known about the architects of the Sechin Complex. They were most likely a high-developed society. The northwestern coast of Peru was occupied by the Casma/Sechin people from approximately 2000 B.C. to 900 B.C., meaning that they predated the great Incan society of Peru. Contrary to formerly held beliefs about pre-Columbian societies, the evidence at Sechin suggests that American civilizations were advanced and booming at the same time as Mesopotamia, half a world away. The cities had complex political entanglements and refined religious practices. There was a vibrant trade between the coasts and the interior. Technologies such as woven textiles and irrigation were mastered and commercialized. The population was largely sedentary and under the control of political/religious/cultural elites.

Warfare and raiding between cities were most likely common in those days. The violence of the age lends support to the anatomical familiarity of the artisans as well as to the need to appease vengeful gods with human sacrifices. The Casma/Sechin culture declined around the same time that other Peruvian ceremonial centers declined, suggesting a possible common cause such as a drought or famine.