Bigfoot can travel through time by running at 100mph.
Sasquatch-obsessed couple Brian and Terrie Seech are convinced that the legendary beasts can outwit humans using their extremely fast running speed to travel between time.
Speaking at the annual Bigfoot convention in Pennsylvania, Brian said: "They stay away from humans. They're smarter so they know that it is a good thing to keep their distance.
"People are seeing things. Things that look like a giant ape. Six to eight feet tall. Some can run up to 100 miles an hour and keep up with cars.
"There are eyewitnesses. It doesn't make any sense but that's what they saw."
Terrie added: "They're interdimensional, which is a reason why we can't see where they're going.
"We can't see where they are coming from."
Conspiracy theorist Steven Haslett also told the convention that Bigfoot arrived on Earth "with aliens" and had helped build the Pyramids in Egypt.