© Express, UK
Witnesses claim the cows look as if they were attacked with lasers, while strange markings were also found on their tongues and genitals.
Farmers in the region are blaming aliens or the mythical chupacabra - a myth from South America which supposedly feeds on animals' blood.
Norberto Bieri, owner of one of the seven cows, told local media: "They did not have tongues or flesh around the jaw, but they did not take any animals away or remove their bones.
"It seems as though the clean incisions were done with a laser as there is no trace of a knife being used. The cows did not have signs of blood and nothing had appeared to eat them.
Comment: More pictures from The Daily Mail:
Horizontal cylinder structures jut out from this large dome feature at the center of the site. Geophysicists on the team report that the coral covering these structures appears to be more than 5000 years old.
A close up of one of the horizontal structures which has scientists baffled. Because of the extreme currents at the location it's almost impossible for coral to grow at all, let alone into a anything this large.
Here, what he describes as the right jutting section of the USO. According to scientists on Darrell's team, no coral anywhere in the world could grow in this formation naturally, there would have to be an underlying structure to support that type of growth.