The Panama Jaguar
The Panama jaguar, discovered in 1920, was also initially considered a decorative object, representing a miniature jaguar. Some time later, however, it was hypothesized that it could be the draft of a machine.
The back of the animal, in fact, is strangely flat and angular, while its tail appears particularly vigorous and has, on its end, two wheels with inscriptions. The jaguar's claws are strangely twisted, elongated towards their ends and as if welded to each other at the base. All these elements suggest that this “jaguar” could actually be an excavator, whose shovels, represented by the legs and claws, could, thanks to a chain driven by the cog wheels of the tail, move large quantities of earth.
According to some experts, only technology of this type has been able to make possible the construction of certain cities like Machu Picchu, the lost city of the Peruvian Andes. Skeptics argue, however, that simple muscular force also made it possible to accomplish this work and that the construction of this excavator presupposes that one knows how to melt the iron and make spare parts. No discovery allowing to conclude to the existence of such knowledge, this theory is revealed for the moment inconsistent.