Sailing stones, also known as sliding rocks, are a geological phenomenon that hitherto constitutes a mystery to geologists, as these rocks are characterized by their ability to move on their own without human or animal interference.
And a team of researchers has come up with what is believed to be the first example of rock that moves itself and dates back millions of years.
Among the theories that scientists have come up with, is that ice, wind and even bacteria move these heavy rocks, as scientists study the long stones and paths that they leave behind.
Researchers believe they have detected one of these paths on fossils of dinosaur footprints that are 200 million years old.
While research also concluded that the stones move when the ice forms if it submerges the area in it.
Then it is believed that it moves through the ice as it melts, which creates a path in the mud that solidifies and remains when the water evaporates.
These dry stones, Racetrack Playa Dry in California's Death Valley.